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src="/sites/default/files/styles/700_x_700_limit/public/images/2023/05/09/AnaMariaReylab.jpg?itok=MCramPzn" width="700" height="394" alt="Ana Maria Rey wears dark safety glasses as she stands behind a table covered with optics equipment in the lab. " typeof="foaf:Image" /> </a> <h3 class="nist-image__title" > <a href="/image/ana-maria-rey-lab" hreflang="en">Ana Maria Rey in the lab</a> </h3> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <p>Ana Maria Rey in the lab. Her work contributed to the most accurate atomic clock ever developed.&nbsp;</p> </div> <div class="nist-image__credit"> <span class="nist-image__credit-label">Credit:</span> R. Jacobson/NIST </div> </figcaption> </figure> </div> <div class="tablet:grid-col-6 mobile-lg:grid-col-4"> <figure class="nist-image"> <a href="/image/optical-coherence-tomography" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/700_x_700_limit/public/images/2023/05/05/3DP_4976_2.png?itok=0iLNggHr" width="700" height="525" alt="A hand in a purple glove turns a metal dial on a plate holding tiny vials of purple liquid. " typeof="foaf:Image" /> </a> <h3 class="nist-image__title" > <a href="/image/optical-coherence-tomography" hreflang="en">Optical Coherence Tomography</a> </h3> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <p>Researchers used a noninvasive and label-free method called optical coherence tomography to assess the live cells in the 3D scaffold system. OCT is an imaging technique that uses light waves to take cross sectional images of a sample.</p> </div> <div class="nist-image__credit"> <span class="nist-image__credit-label">Credit:</span> R. Wilson/NIST </div> </figcaption> </figure> </div> </div> </div> </div> <div class="nist-block" > <h2 class="nist-block__title" >Other Galleries</h2> <div class="text-with-summary"> <div class="grid-row grid-gap"> <div class="tablet:grid-col"> <figure class=" align-center nist-image" role="group"> <div> <img alt="1/100 Legal Ohm Resistance Standard" height="320" loading="lazy" src="/sites/default/files/styles/480_x_480_limit/public/images/2023/05/16/Legal_Ohm_Resistance_Standard.png?itok=vj1_y8UV" typeof="foaf:Image" width="480"> </div> <figcaption class="nist-image__caption"></figcaption> </figure> <p class="more-link"><a href="https://nistdigitalarchives.contentdm.oclc.org/">NIST Digital Archive</a></p> </div> <div class="tablet:grid-col"> <figure class=" align-center nist-image" role="group"> <div> <img alt="Gaithersburg NIST Campus" height="320" loading="lazy" src="/sites/default/files/styles/480_x_480_limit/public/images/2023/05/16/gaithersburg_campus.png?itok=0-1ADTte" typeof="foaf:Image" width="480"> </div> <figcaption class="nist-image__caption"></figcaption> </figure> <p class="more-link"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="09ab9e65-787a-424c-899c-852a37011917" href="/pao/gaithersburg-campus-photos" title="Gaithersburg Campus Photos">Gaithersburg Campus Photos</a></p> </div> <div class="tablet:grid-col"> <figure class=" align-center nist-image" role="group"> <div> <img alt="Boulder NIST Campus Photo" height="320" loading="lazy" src="/sites/default/files/styles/480_x_480_limit/public/images/2023/05/16/boulder_campus.png?itok=jut2bCqR" typeof="foaf:Image" width="480"> </div> <figcaption class="nist-image__caption"></figcaption> </figure> <p class="more-link"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="c1392217-a254-4641-9b01-e1563716194a" href="/image-gallery/boulder-campus-photos" title="Boulder Campus Photos">Boulder Campus Photos</a></p> </div> </div> </div> </div> <div class="views-exposed-form usa-form filters nist-block" novalidate="novalidate" data-drupal-selector="views-exposed-form-image-gallery-image-search-block" > <h2 class="nist-block__title" >Search NIST Image Gallery</h2> <form action="/image-gallery/search" method="get" id="views-exposed-form-image-gallery-image-search-block" accept-charset="UTF-8" class="usa-form"> <div class="tablet:flex-fill grid-row grid-gap-1"> <div class="tablet:grid-col-5"> <div class="form-item js-form-item form-type-textfield js-form-type-textfield form-item-k js-form-item-k"> <label for="edit-k" class="usa-label"> Keyword </label> <input data-drupal-selector="edit-k" type="text" id="edit-k" name="k" value="" size="30" maxlength="128" class="form-text usa-input" /> <div id="edit-k--description" class="description help-block"> Searches within the image title, alternative text, image credit, caption, tags, and reference number </div> </div> </div> <div class="tablet:grid-col-5"> <div class="form-item js-form-item form-type-select js-form-type-select form-item-topic js-form-item-topic"> <label for="edit-topic" class="usa-label"> Topic </label> <div class="select-wrapper"><select data-drupal-selector="edit-topic" id="edit-topic" name="topic" class="form-select usa-select"><option value="All" selected="selected">- Any -</option><option value="248851">Accessibility</option><option value="249346">Accreditation</option><option value="248871">Additive manufacturing</option><option value="249466">Advanced communications</option><option value="249401">Aerospace</option><option value="2748476">Agility and adaptability</option><option value="2800826">AI measurement and evaluation</option><option value="248566">Air / water / soil quality</option><option value="248536">Alternative energy</option><option value="249061">Amount of substance</option><option value="248421">Analytical chemistry</option><option value="2753736">Artificial intelligence</option><option value="249211">Assessment tools and services</option><option value="249246">Atomic / molecular / quantum</option><option value="249406">Automotive</option><option value="249431">Baldrige award</option><option value="249436">Baldrige examiners</option><option value="249226">Baldrige Framework and Criteria</option><option value="249231">Best practices</option><option value="2816256">Bioeconomy</option><option value="2816281">Biofabrication</option><option value="2816351">Biological data</option><option value="249251">Biological physics</option><option value="248681">Biopharmaceuticals</option><option value="2816271">Biosurveillance</option><option value="248376">Building codes and standards</option><option value="249416">Calibration services</option><option value="2816296">Cancer</option><option value="248951">Ceramics</option><option value="249311">Chemical / Biological / Radiological / Nuclear / Explosives (CBRNE)</option><option value="2748456">Collaborative robots</option><option value="2746576">Community resilience</option><option value="248956">Composites</option><option value="248971">Composition and structure</option><option value="248961">Concrete / cement</option><option value="249256">Condensed matter</option><option value="249366">Conformity assessment</option><option value="248746">Cryptography</option><option value="2748461">Dexterous grasping</option><option value="248626">Digital evidence</option><option value="249066">Dimensional metrology</option><option value="248456">Disaster and failure studies</option><option value="249371">Documentary standards</option><option value="248466">Earthquake risk reduction</option><option value="249071">Electrical / electromagnetic metrology</option><option value="248491">Electromagnetics</option><option value="249261">Electron physics</option><option value="249016">Experiment design</option><option value="2746601">Factory communications</option><option value="248886">Factory operations planning and control</option><option value="248591">Fire detection</option><option value="249316">First responder preparedness</option><option value="2816301">Flow cytometry</option><option value="249081">Flow metrology and rheology</option><option value="249086">Force metrology</option><option value="2748516">Frameworks</option><option value="248761">Human language technology</option><option value="249091">Humidity metrology</option><option value="249021">Image and signal processing</option><option value="248891">Interoperability in manufacturing</option><option value="249096">Ionizing radiation metrology</option><option value="249321">Law enforcement</option><option value="249236">Leadership development</option><option value="249151">Lithography</option><option value="248901">Machining</option><option value="249266">Magnetics</option><option value="2748471">Manipulation</option><option value="2788841">Manufacturing economics</option><option value="248916">Manufacturing quality assurance</option><option value="248906">Manufacturing systems design and analysis</option><option value="249101">Mass metrology</option><option value="248966">Materials characterization</option><option value="248981">Mechanical properties</option><option value="248991">Metals</option><option value="2746606">Metric</option><option value="2753766">Mobile and wireless networking</option><option value="2748466">Mobility and industrial autonomous vehicles</option><option value="248996">Modeling and computational material science</option><option value="249031">Modeling and simulation research</option><option value="2784921">Monitoring, diagnostics and prognostics</option><option value="249131">Nanobiotechnology</option><option value="249136">Nanochemistry</option><option value="249141">Nanoelectronics</option><option value="249146">Nanofabrication / manufacturing</option><option value="249161">Nanofluidics</option><option value="249166">Nanomagnetics</option><option value="249171">Nanomaterials</option><option value="249176">Nanomechanics</option><option value="249181">Nanometrology</option><option value="249186">Nanophotonics</option><option value="249191">Nanophysics</option><option value="249196">Nanoplasmonics</option><option value="2748486">Navigation / actuation / control</option><option value="249271">Nuclear physics</option><option value="249036">Numerical methods and software</option><option value="2806886">Open Radio Access Network (Open-RAN)</option><option value="249106">Optical / photometry / laser metrology</option><option value="249276">Optical physics and communications</option><option value="249001">Polymers</option><option value="249111">Pressure and vacuum metrology</option><option value="2748446">Process improvement</option><option value="248911">Process measurement and control</option><option value="2748451">Product data</option><option value="249331">Public safety communications research</option><option value="2813451">Quality assurance</option><option value="249281">Quantum information science</option><option value="249286">Radiation</option><option value="2816306">Recovery</option><option value="249376">Reference data</option><option value="249381">Reference instruments</option><option value="249386">Reference materials</option><option value="2788846">Resilience economics</option><option value="2816311">Resilience metrics</option><option value="2746891">Resilient materials</option><option value="249336">Response robots</option><option value="248921">Robotics in manufacturing</option><option value="249156">Self-assembly</option><option value="2748481">Sensing and perception</option><option value="2746861">Smart cities</option><option value="248841">Software testing</option><option value="249291">Spectroscopy</option><option value="249391">Standards education</option><option value="249041">Statistical analysis</option><option value="249006">Superconductors</option><option value="248926">Supply chain</option><option value="248931">Sustainable manufacturing</option><option value="2748491">Systems engineering</option><option value="2748496">Systems integration</option><option value="248936">Technology commercialization</option><option value="248986">Thermal properties</option><option value="249296">Thermodynamics</option><option value="249116">Thermometry metrology</option><option value="249301">Time and frequency</option><option value="249121">Time and frequency metrology</option><option value="249046">Uncertainty quantification</option><option value="2746611">Weights and measures</option><option value="248481">Windstorm impact reduction</option><option value="2788806">Applied AI</option><option value="2813411">Bioimaging</option><option value="248701">Biometrics</option><option value="248381">Building control systems</option><option value="2813441">Cell and gene therapy</option><option value="2813416">Cell-free systems</option><option value="248426">Chemical engineering and processing</option><option value="2788551">Climate Measurements</option><option value="248541">Conventional energy</option><option value="2753741">Cybersecurity education and workforce development</option><option value="248636">Drugs and toxicology</option><option value="2746901">Fire dynamics and science</option><option value="248526">Flexible electronics</option><option value="2816276">Genomic cybersecurity</option><option value="248766">Information retrieval</option><option value="248676">Medical imaging</option><option value="2753756">Network management and monitoring</option><option value="248311">Quantum communications</option><option value="2806896">Bioinformatics</option><option value="248386">Building damage and repair</option><option value="248431">Chemical thermodynamics and chemical properties</option><option value="248661">Clinical diagnostics</option><option value="248706">Cloud computing and virtualization</option><option value="2788811">Cybersecurity measurement</option><option value="248546">Electric power / smart grid</option><option value="248571">Environmental health</option><option value="248596">Fire fighting</option><option value="248621">Firearms and toolmarks</option><option value="2788801">Fundamental AI</option><option value="2816286">Genome engineering</option><option value="248496">Magnetoelectronics</option><option value="248771">Natural language processing</option><option value="248811">Network modeling and analysis</option><option value="2816356">Nucleic acid sequence screening</option><option value="2806891">Spectrum sharing</option><option value="248876">Biomanufacturing</option><option value="248391">Building economics</option><option value="248711">Complex systems</option><option value="248601">Fire modeling</option><option value="248671">Food and nutrition</option><option value="248641">Forensic biometrics</option><option value="248556">Fuels</option><option value="248576">Greenhouse gas measurements</option><option value="2800831">Hardware for AI</option><option value="248736">Identity and access management</option><option value="248436">Molecular characterization</option><option value="2753746">Network security and robustness</option><option value="248501">Optoelectronics</option><option value="2816291">Protein engineering</option><option value="248316">Wireless (RF)</option><option value="248326">Biomaterials</option><option value="248396">Building materials</option><option value="248716">Computational science</option><option value="248606">Fire risk reduction</option><option value="248631">Forensic genetics</option><option value="2813446">Human microbiome</option><option value="2800991">Machine learning</option><option value="248581">Marine science</option><option value="2753751">Network test and measurement</option><option value="249491">Organic electronics</option><option value="2788816">Privacy engineering</option><option value="248441">Theoretical chemistry and modeling</option><option value="2816261">Biometrology</option><option value="248721">Conformance testing</option><option value="248551">Energy efficiency</option><option value="248611">Materials flammability</option><option value="248816">Next generation networks</option><option value="248686">Precision medicine</option><option value="248751">Risk management</option><option value="248511">Semiconductors</option><option value="2746596">Sustainability</option><option value="248446">Thermochemical properties</option><option value="248646">Trace evidence</option><option value="2800836">Trustworthy and responsible AI</option><option value="2816266">Biosecurity</option><option value="248726">Cyber-physical systems</option><option value="248401">Heating, ventilation and air conditioning equipment</option><option value="2753761">Protocol聽design and standardization</option><option value="248656">Regenerative medicine and advanced therapy</option><option value="2788821">Securing emerging technologies</option><option value="248516">Sensors</option><option value="2746906">Structural fire resistance</option><option value="248336">Cell measurements</option><option value="248731">Cybersecurity</option><option value="248406">Indoor air quality</option><option value="2753771">Software defined and virtual networks</option><option value="248521">Superconducting electronics</option><option value="2788826">Trustworthy networks</option><option value="2746911">Wildland urban interface fire</option><option value="248756">Data and informatics</option><option value="248341">Engineering / synthetic biology</option><option value="248411">Structural engineering</option><option value="2788831">Trustworthy platforms</option><option value="248781">Federal information processing standards (FIPS)</option><option value="2813421">Gene delivery systems</option><option value="2788796">Thermal comfort</option><option value="2813426">Genome editing</option><option value="248786">Health IT</option><option value="248346">Genomics</option><option value="2748441">Internet of Things (IoT)</option><option value="248351">Glycomics</option><option value="248796">Interoperability testing</option><option value="2806901">Location based services</option><option value="2784896">Metabolomics</option><option value="248361">Microbial measurements</option><option value="248801">Mobile</option><option value="248806">Networking</option><option value="248366">Proteomics</option><option value="248821">Privacy</option><option value="2813436">Transcriptomics</option><option value="248826">Software research</option><option value="248846">Usability and human factors</option><option value="248776">Video analytics</option><option value="2788836">Virtual / augmented reality</option><option value="248856">Visualization research</option><option value="248861">Voting systems</option><option value="248321">Bioscience</option><option value="248371">Buildings and Construction</option><option value="248416">Chemistry</option><option value="248486">Electronics</option><option value="248531">Energy</option><option value="248561">Environment</option><option value="248586">Fire</option><option value="248616">Forensic Science</option><option value="248651">Health</option><option value="249421">Information technology</option><option value="2748236">Infrastructure</option><option value="248866">Manufacturing</option><option value="248946">Materials</option><option value="249011">Mathematics and statistics</option><option value="249051">Metrology</option><option value="249126">Nanotechnology</option><option value="249451">Neutron research</option><option value="249426">Performance excellence</option><option value="249241">Physics</option><option value="249461">Public safety</option><option value="249456">Resilience</option><option value="249341">Standards</option><option value="2813456">Technology transfer</option><option value="249396">Transportation</option></select></div> </div> </div> <div class="tablet:grid-col-2 flex-align-self-center"> <div class="grid-col-12 form-actions js-form-wrapper form-wrapper" data-drupal-selector="edit-actions" id="edit-actions"><input data-drupal-selector="edit-submit-image-gallery" type="submit" id="edit-submit-image-gallery" value="Search" class="button js-form-submit form-submit usa-button" /></div> </div> </div> </form> </div> <div class="views-element-container nist-block" > <div><div class="grid-row grid-gap-2 js-view-dom-id-c4ea98a99f223ab1c40bbbd808cee908d2f64d4a94fe8800328998e4c3836e0a"> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/kilograms-nist" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2023/02/23/kg-on-table-2.jpg?itok=CtTN1PNE" width="220" height="220" alt="kilograms under glass jars" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/kilograms-nist" hreflang="en">Kilograms at NIST</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/03ts001peanutbsrmcsjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2020/01/24/03ts001_peanutbsrm_cs-cropped.jpg?itok=6gX202D6" width="220" height="220" alt="Peanut butter standard reference material." title="Peanut butter" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/03ts001peanutbsrmcsjpg" hreflang="en">Peanut butter</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/superpositiongif" hreflang="en"><img loading="lazy" src="/sites/default/files/images/2019/12/04/superposition.gif" width="1440" height="818" alt="animated gif showing superposition by using skateboarders." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/superpositiongif" hreflang="en">Quantum Physics &amp; Superposition (Illustration)</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/radionucleotides-e1455229164305jpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2019/06/24/radionucleotides-e1455229164305.jpg?itok=FM3Q4rB6" width="220" height="220" alt="Magdalena Navarro and Bill Gadzuk with the Chart of the Radionuclides" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/radionucleotides-e1455229164305jpg" hreflang="en">Magdalena Navarro and Bill Gadzuk with the Chart of the Radionuclides</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/19mml002-protein-particle-ref-materialjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2019/02/27/19mml002-protein-particle-ref-material.jpg?itok=EXXsFH_U" width="220" height="220" alt="A small particle against a porous background." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/19mml002-protein-particle-ref-materialjpg" hreflang="en">Abraded EFTE particle</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/19mml001protein-particle-does-not-equal-illustration-k-irvinenist-hrpng" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2019/02/27/19mml001_protein-particle-does-not-equal-illustration-by-k-irvine_nist-hr.png?itok=OYaroY_9" width="220" height="220" alt="An illustration of a small particle is placed next to an illustration of polystyrene spheres." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/19mml001protein-particle-does-not-equal-illustration-k-irvinenist-hrpng" hreflang="en">Particle does NOT equal sphere.</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/moleculespng" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2019/02/25/molecules.png?itok=GJg0onKy" width="220" height="220" alt="individual fluorescent molecules" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/moleculespng" hreflang="en">individual fluorescent molecules</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/19pml003ioncrystalpng" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2019/02/20/19pml003_ion_crystal.png?itok=TFv4qKrh" width="220" height="220" alt="Nine blue spheres lined up on a horizontal mesh structure curved up at the ends. Double-headed black arrows below all but the center sphere suggest vibration. Pink and white striped background." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/19pml003ioncrystalpng" hreflang="en">Illustration of vibrating ions</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/blockchainmanufacturingfinalpng" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2019/02/13/blockchain_manufacturing_final.png?itok=gMQOLi2q" width="220" height="220" alt="Illustration of the 4-step manufacturing process with blockchain involvement" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/blockchainmanufacturingfinalpng" hreflang="en">Illustration: Blockchain in Manufacturing</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/18jila003ye-buckyballjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2019/01/28/18jila003_ye-buckyball.jpg?itok=PSXSld02" width="220" height="220" alt="Rulers of light shining on individual buckyballs" title="Quantum States of Buckyballs" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/18jila003ye-buckyballjpg" hreflang="en">Quantum States of Buckyballs</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/18do006roi-5draftgreenpaperjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/12/06/18do006_roi-5_draft_greenpaper.jpg?itok=sw4nhn7C" width="220" height="220" alt="cover of draft green paper" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/18do006roi-5draftgreenpaperjpg" hreflang="en">Cover of Return on Investment Initiative for Unleashing American Innovation</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/cgpmredefusdelegationnov2018versaillesjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/12/03/cgpm_redef_usdelegation_nov2018_versailles.jpg?itok=XiB31R76" width="220" height="220" alt="6 people standing on a stage in front of a screen that reads: 26th CGPM" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/cgpmredefusdelegationnov2018versaillesjpg" hreflang="en">U.S. Delegation to CGPM SI Redefinition Vote</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/jim-olthoff-noac" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/12/03/jim_olthoff_with_noac.jpg?itok=0W-kOYi1" width="220" height="220" alt="Man holding a NIST on a Chip device" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/jim-olthoff-noac" hreflang="en">Jim Olthoff with NOAC</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/18itl009facialrecognitiongraphicjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/11/27/18itl009_facial_recognition_graphic.jpg?itok=IxWsi4Rr" width="220" height="220" alt="computerized image of a bearded face shown from several angles" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/18itl009facialrecognitiongraphicjpg" hreflang="en">Facial Recognition Illustration</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/18ctl003ctlantenna-beam-exp2-jelena-senicinstagramjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/09/13/18ctl003_ctl_antenna-beam-exp2-jelena-senic_instagram.jpg?itok=tKmQDJfj" width="220" height="220" alt="Woman in large indoor hallway standing next to tall stack of electronic equipment." title="Antenna robot" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/18ctl003ctlantenna-beam-exp2-jelena-senicinstagramjpg" hreflang="en">Antenna robot</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/improvingmembranebasedwaterfiltrationjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/06/15/improving_membrane_based_water_filtration.jpg?itok=ckdwARsw" width="220" height="220" alt="NIST researcher Chris Stafford is using a modified commercial instrument to measure the characteristics of different chemical formulations of ultra-thin sheets of plastic" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/improvingmembranebasedwaterfiltrationjpg" hreflang="en">Improving Membrane-Based Water Filtration</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/18el005nist-researchers-end-cross-laminated-timbers-fire-test-2mbjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/05/21/18el005_nist-researchers-at-end-of-cross-laminated-timbers-fire-test-2mb.jpg?itok=wBJ4Feim" width="220" height="220" alt="Two firefighters look over the last flames inside a compartment where the flammability of cross-laminated timber buildings is being tested." title="NIST Firefighters at End of Cross-Laminated Timbers Fire Test" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/18el005nist-researchers-end-cross-laminated-timbers-fire-test-2mbjpg" hreflang="en">NIST Firefighters at End of Cross-Laminated Timbers Fire Test</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/lab-setupjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/05/18/lab-setup.jpg?itok=ZTqO9FE7" width="220" height="220" alt="NIST-on-a-Chip lab setup" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/lab-setupjpg" hreflang="en">NIST-on-a-Chip lab setup</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/closeupx7001png" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/05/15/closeupx700_1.png?itok=2ElCK5vy" width="220" height="220" alt="gold chip" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/closeupx7001png" hreflang="en">SET Chip</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image-19105" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/05/12/nist-library-us-prototype-meter-bar-color_hr_1.jpg?itok=P32oo2f5" width="220" height="220" alt="Two meter bars with a red background" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image-19105" hreflang="en">Meter Bar</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/18cnst006lithiumnanowhiskersjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/05/09/18cnst006_lithium_nanowhiskers.jpg?itok=TusqZR7c" width="220" height="220" alt="illustration. gray disk. green rods come up from the disk." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/18cnst006lithiumnanowhiskersjpg" hreflang="en">Nanowires on a Lithium Solid-State Battery</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/18el002astronautsampleholderameexperimentnasaimagejpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/05/01/18el002_astronautsampleholder_ame_experimentnasa_image.jpg?itok=n9jTMhsB" width="220" height="220" alt="Astronaut aboard the International Space Station is seen preparing a carousel holding samples of materials for a smoke detection test." title="Astronaut Prepares Samples for Microgravity Smoke Detection Test" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/18el002astronautsampleholderameexperimentnasaimagejpg" hreflang="en">Astronaut Prepares Samples for Microgravity Smoke Detection Test</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/tunicates-apr-02-201811-12-10gif" hreflang="en"><img loading="lazy" src="/sites/default/files/images/2018/04/04/tunicates-apr-02-2018_11-12-10.gif" width="480" height="311" alt="Handing bending experimental material" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/tunicates-apr-02-201811-12-10gif" hreflang="en">Experimental Material: 30% tunicate</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/ion-trap-1" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/03/26/15pml031_ion-trap_composite_hr_bottom_only.jpg?itok=E9Weg7wB" width="220" height="220" alt="Square device surrounded by a design of gold wiring." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/ion-trap-1" hreflang="en">Ion Trap</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/bmfinteriorjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/03/22/bmf_interior.jpg?itok=nG10c9-h" width="220" height="220" alt="BMF Interior" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/bmfinteriorjpg" hreflang="en">BMF Interior</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/led-mapper" hreflang="en"><img loading="lazy" src="/sites/default/files/images/2018/03/07/ledmapper.gif" width="1280" height="720" alt="LED mapper" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/led-mapper" hreflang="en">LED mapper</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/17mml016fentanylmass-charge-ratiopng" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/03/06/17mml016_fentanyl_mass-to-charge-ratio.png?itok=eg4sJFww" width="220" height="220" alt="A graph with vertical lines showing the mass spectrum of fentanyl" title=" Mass Spectrum of Fentanyl" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/17mml016fentanylmass-charge-ratiopng" hreflang="en">Mass Spectrum of Fentanyl</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/figure8png-1" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/02/21/figure_8.png?itok=-XttGEIZ" width="220" height="220" alt="EBSD map of the same cross section shown in Figure 7. 聽The black line shows the location of the melt pool boundary." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/figure8png-1" hreflang="en">Figure 8</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/17el031brandonlaneadditive-manuf-metrology-testbedcopyrtearl-zubkoffhrjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/02/12/17el031_brandon_lane_additive-manuf-metrology-testbed_copyrt_earl-zubkoff_hr.jpg?itok=Wtmwvsw6" width="220" height="220" alt="Researcher Brandon Lane making adjustments inside the large 3D printer" title="Additive Manufacturing Metrology Testbed" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/17el031brandonlaneadditive-manuf-metrology-testbedcopyrtearl-zubkoffhrjpg" hreflang="en">Additive Manufacturing Metrology Testbed</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/15pml034leon-chao-watt-balance-curt-suplee-nistjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/02/10/15pml034_leon-chao-watt-balance-by-curt-suplee-nist.jpg?itok=TuSxn_em" width="220" height="220" alt="NIST-4 Watt Balance" title="NIST-4 Watt Balance" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/15pml034leon-chao-watt-balance-curt-suplee-nistjpg" hreflang="en">NIST-4 Watt Balance</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/davidleibrandandquantumlogicclockjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/01/31/david_leibrand_and_quantum_logic_clock.jpg?itok=r8nxd__t" width="220" height="220" alt="NIST researcher David Leibrandt" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/davidleibrandandquantumlogicclockjpg" hreflang="en">David Leibrandt and Quantum Logic Clock</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/dibenedetoniststonetestwallmortarworkjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2018/01/11/di_benedeto_nist_stone_test_wall_mortar_work.jpg?itok=turZLYiy" width="220" height="220" alt="NIST Stone Test Wall mortar work" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/dibenedetoniststonetestwallmortarworkjpg" hreflang="en">NIST Stone Test Wall mortar</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/nice-cool-cyber-careers-girls-eventjpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2017/10/26/20131113_cybersecurity_620.jpg?itok=XRtiChne" width="220" height="220" alt="Davina Pruitt-Mentle discussing cyber career options at a table of young women. " typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/nice-cool-cyber-careers-girls-eventjpg" hreflang="en">NICE Cool Cyber Careers for Girls Event</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/h-terminated-si-surface" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2017/10/26/8nm.png?itok=gYYInk5n" width="220" height="220" alt="H-terminated Si surface." typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/h-terminated-si-surface" hreflang="en">H-terminated Si surface.</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/erica-stein-pipetting960x600jpg" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2017/09/20/dsc_5330_edited_960x600.jpg?itok=EGR4oXYx" width="220" height="220" alt="Researcher Erica Stein pipetting under chemical hood" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/erica-stein-pipetting960x600jpg" hreflang="en">Erica Stein pipetting</a> </div> </figcaption> </figure> </div> <div class="tablet:grid-col-2 mobile-lg:grid-col-4"> <figure class="nist-image nist-image--link"> <a href="/image/carbonnanotubespng-0" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/220_x_220_crop/public/images/2017/08/21/carbonnanotubes_1.png?itok=Ged_BK9-" width="220" height="220" alt="Carbon nanotubes" typeof="foaf:Image" /> </a> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> <a href="/image/carbonnanotubespng-0" hreflang="en">Carbon nanotubes</a> </div> </figcaption> </figure> </div> <div class="more-link grid-row-12 margin-top-2"><a class="usa-button" href="/image-gallery/search">View all images</a></div> </div> </div> </div> </div> </div> </section> </div> <div data-elastic-exclude> <!-- nist-index-ignore-start --> <footer class="nist-footer padding-bottom-4"> <div class="grid-container nist-footer__info"> <div class="grid-row"> <div class="tablet:grid-col-6"> <div class="nist-footer__logo"> <a href="/" title="National Institute of Standards and Technology" rel="home"> <img class="nist-footer__logo-img" src="/libraries/nist-component-library/dist/img/logo/NIST-Logo-Brand-White.svg" alt="National Institute of Standards and Technology logo" width="300px" height="42px" /> </a> </div> <div class="nist-footer__contact"> <h3 class="nist-footer__contact-heading">HEADQUARTERS</h3> <address> 100 Bureau Drive<br> Gaithersburg, MD 20899<br> <a href="tel:301-975-2000">301-975-2000</a> </address> <p> <a href="mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://www.nist.gov/visit">Our Other Offices</a> </p> </div> </div> <div class="tablet:grid-col-6"> <div class="nist-footer__social-links"> <a class="nist-social nist-social--x-white" href=" https://x.com/NIST"> <span>X.com</span> </a> <a class="nist-social nist-social--facebook-white" href=" https://www.facebook.com/NIST"> <span>Facebook</span> </a> <a class="nist-social nist-social--linkedin-white" href=" https://www.linkedin.com/company/nist"> <span>LinkedIn</span> </a> <a class="nist-social nist-social--instagram-white" href=" https://www.instagram.com/nist/"> <span>Instagram</span> </a> <a class="nist-social nist-social--youtube-white" href=" https://www.youtube.com/NIST"> <span>YouTube</span> </a> <a class="nist-social nist-social--giphy-white" href=" https://giphy.com/nist"> <span>Giphy</span> </a> <a class="nist-social nist-social--rss-white" href=" https://www.nist.gov/news-events/nist-rss-feeds"> <span>RSS Feed</span> </a> <a class="nist-social nist-social--envelope-white" href=" https://public.govdelivery.com/accounts/USNIST/subscriber/new"> <span>Mailing List</span> </a> </div> <div class="nist-footer__feedback"> How are we doing? 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