Time and Frequency Division

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class="field-content"><a href="/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/atomic-devices-and-instrumentation" hreflang="en">Atomic Devices and Instrumentation Group</a></span></div></li> <li><div class="views-field views-field-title-1"><span class="field-content"><a href="/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/ion-storage" hreflang="en">Ion Storage Group</a></span></div></li> <li><div class="views-field views-field-title-1"><span class="field-content"><a href="/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/optical-frequency-measurements" hreflang="en">Optical Frequency Measurements Group</a></span></div></li> <li><div class="views-field views-field-title-1"><span class="field-content"><a href="/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/time-and-frequency-metrology" hreflang="en">Time and Frequency Metrology</a></span></div></li> <li><div class="views-field views-field-title-1"><span class="field-content"><a href="/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/time-services" hreflang="en">Time Realization and Distribution</a></span></div></li> </ul> </div> </div> </div> </div>  </div> </aside> <div class="nist-page__region nist-page__region--content tablet-lg:grid-col-8 desktop-lg:grid-col-9"> <div class="nist-block"> <div class="paragraph paragraph--type--hero paragraph--view-mode--default"> <div class="nist-hero grid-row grid-gap-2"> <div class="nist-hero__item tablet:grid-col-4 "> <div class="nist-hero__item-inner"> <div class="nist-hero__image"> <a href="/web/20230306063115/https://www.nist.gov/programs-projects/nist-chip-adi"> <picture> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/chipscaleclock.webp?itok=AYvJq2rL 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2016/09/06/chipscaleclock.webp?itok=ynujkKXU 2x" media="(min-width: 480px)" type="image/webp" width="600" height="360"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2016/09/06/chipscaleclock.webp?itok=rFLfyAJb 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/chipscaleclock.webp?itok=AYvJq2rL 2x" media="(min-width: 0px)" type="image/webp" width="300" height="180"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/chipscaleclock.jpg?itok=AYvJq2rL 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2016/09/06/chipscaleclock.jpg?itok=ynujkKXU 2x" media="(min-width: 480px)" type="image/jpeg" width="600" height="360"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2016/09/06/chipscaleclock.jpg?itok=rFLfyAJb 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/chipscaleclock.jpg?itok=AYvJq2rL 2x" media="(min-width: 0px)" type="image/jpeg" width="300" height="180"/> <img loading="eager" src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/chipscaleclock.jpg?itok=AYvJq2rL" width="600" height="360" alt="NIST on a chip" typeof="foaf:Image"/> </picture> </a> </div> <div class="nist-hero__caption"> <a href="/web/20230306063115/https://www.nist.gov/programs-projects/nist-chip-adi"> <div class="text"><p>NIST-on-a-Chip in ADI</p> </div> </a> </div> </div> </div> <div class="nist-hero__item tablet:grid-col-4 "> <div class="nist-hero__item-inner"> <div class="nist-hero__image"> <a href="/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/primary-standard-nist-f1"> <picture> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/nistf1.webp?itok=LLdlJ3Lv 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2016/09/06/nistf1.webp?itok=3rN2FRyH 2x" media="(min-width: 480px)" type="image/webp" width="600" height="360"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2016/09/06/nistf1.webp?itok=SA7scv2j 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/nistf1.webp?itok=LLdlJ3Lv 2x" media="(min-width: 0px)" type="image/webp" width="300" height="180"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/nistf1.jpg?itok=LLdlJ3Lv 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2016/09/06/nistf1.jpg?itok=3rN2FRyH 2x" media="(min-width: 480px)" type="image/jpeg" width="600" height="360"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2016/09/06/nistf1.jpg?itok=SA7scv2j 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/nistf1.jpg?itok=LLdlJ3Lv 2x" media="(min-width: 0px)" type="image/jpeg" width="300" height="180"/> <img loading="eager" src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/nistf1.jpg?itok=LLdlJ3Lv" width="600" height="360" alt="NIST-F1 Cesium Fountain Atomic Clock" typeof="foaf:Image"/> </picture> </a> </div> <div class="nist-hero__caption"> <a href="/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/primary-standard-nist-f1"> <div class="text"><p>NIST-F1 Cesium Fountain Atomic Clock</p> </div> </a> </div> </div> </div> <div class="nist-hero__item tablet:grid-col-4 "> <div class="nist-hero__item-inner"> <div class="nist-hero__image"> <a href="/web/20230306063115/https://www.nist.gov/programs-projects/yb-lattice-clock"> <picture> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/ybapp.webp?itok=sZJartjU 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2016/09/06/ybapp.webp?itok=o3fTskSV 2x" media="(min-width: 480px)" type="image/webp" width="600" height="360"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2016/09/06/ybapp.webp?itok=h_itDPpa 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/ybapp.webp?itok=sZJartjU 2x" media="(min-width: 0px)" type="image/webp" width="300" height="180"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/ybapp.jpg?itok=sZJartjU 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2016/09/06/ybapp.jpg?itok=o3fTskSV 2x" media="(min-width: 480px)" type="image/jpeg" width="600" height="360"/> <source srcset="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2016/09/06/ybapp.jpg?itok=h_itDPpa 1x, /web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/ybapp.jpg?itok=sZJartjU 2x" media="(min-width: 0px)" type="image/jpeg" width="300" height="180"/> <img loading="eager" src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2016/09/06/ybapp.jpg?itok=sZJartjU" width="600" height="360" alt="Yb Lattice Clock" typeof="foaf:Image"/> </picture> </a> </div> <div class="nist-hero__caption"> <a href="/web/20230306063115/https://www.nist.gov/programs-projects/yb-lattice-clock"> <div class="text"><p>Yb Lattice Clock</p> </div> </a> </div> </div> </div> </div> </div> <div class="nist-content-row nist-content-row--width-legible paragraph paragraph--type--text paragraph--view-mode--default"> <div class="nist-block text-long"><div class="nist-block"> <h2 class="nist-block__title">Popular Links</h2> <div class="grid-row grid-gap"> <div class="grid-col"> <ul><li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="aef03aff-1c79-4e36-8794-3485c8ae6d7f" href="/web/20230306063115/https://www.nist.gov/blogs/taking-measure/keeping-time-nist" title="Keeping Time at NIST">Keeping Time at NIST</a> - blog post</li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/time-distribution/radio-station-wwvb/help-wwvb-radio-controlled">Help with Radio Controlled Clocks</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/time-distribution/radio-station-wwv/telephone-time-day-service">Telephone Time</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/popular-links/web-clock-faq">Frequently Asked Questions (FAQ)</a></li> </ul></div> <div class="grid-col"> <ul><li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="0bbda15b-2b38-4916-8c56-a8c94993c566" href="/web/20230306063115/https://www.nist.gov/measuring-cosmos" title="Measuring The Cosmos">Measuring the Cosmos</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/time-services/nist-time-and-frequency-division-history">Division History</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/popular-links/time-frequency-z">Time and Frequency from A to Z</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/popular-links/walk-through-time">A Walk Through Time</a></li> </ul></div> </div> </div></div> </div> <div class="paragraph paragraph--type--dynamic-content-list-ou paragraph--view-mode--default"> <div class="nist-block "> <h2 class="nist-block__title"> <div class="string">News and Updates</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-0c7e7dc2281dd17932e62fd430ebc62edf2b8eea3f529bf4e5029aaec6d6f6b0"> <div> <article role="article" about="/news-events/news/2022/08/spotlight-keeping-time-earths-rotation" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/news-events/news/2022/08/spotlight-keeping-time-earths-rotation" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2022/09/07/shutterstock_33299590.jpg?itok=bROmLtbD" width="100" height="71" alt="A globe spins on a curved stand, blurring the shape of North America." loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/news-events/news/2022/08/spotlight-keeping-time-earths-rotation"><span property="schema:name">Spotlight: Keeping Time With the Earth鈥檚 Rotation</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2022-08-05T12:00:00Z">August 5, 2022</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">Scientists try to predict how the Earth鈥檚 rotation will change so they know how to steer the clocks in the future.</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/news/2022/08/nist-researchers-develop-miniature-lens-trapping-atoms" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/news-events/news/2022/08/nist-researchers-develop-miniature-lens-trapping-atoms" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2022/07/26/atom-trapping.png?itok=OcfMdMpj" width="100" height="46" alt="illustration" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/news-events/news/2022/08/nist-researchers-develop-miniature-lens-trapping-atoms"><span property="schema:name">NIST Researchers Develop Miniature Lens for Trapping Atoms</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2022-08-01T12:00:00Z">August 1, 2022</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">Atoms are notoriously difficult to control. They zigzag like fireflies, tunnel out of the strongest containers and jitter even at temperatures near absolute</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/news/2021/11/nist-recommends-steps-boost-resilience-us-timekeeping" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/news-events/news/2021/11/nist-recommends-steps-boost-resilience-us-timekeeping" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2021/11/29/resilient_time_image_%28002%29.png?itok=6wlqig_f" width="100" height="32" alt="A small rectangular device with a display screen and buttons sits next to a spool of yellow fiber. " loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/news-events/news/2021/11/nist-recommends-steps-boost-resilience-us-timekeeping"><span property="schema:name">NIST Recommends Steps to Boost Resilience of U.S. Timekeeping</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2021-11-29T12:00:00Z">November 29, 2021</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">The nation should bolster research and development of systems that distribute accurate time via fiber-optic cable and radio as part of the effort to back up GPS</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/news/2021/09/spotlight-stability-boosting-swap-our-chip-scale-clock" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/news-events/news/2021/09/spotlight-stability-boosting-swap-our-chip-scale-clock" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2021/09/28/1632149962693.jpg?itok=f_0fiV7R" width="100" height="100" alt="A tiny chip encased in clear plastic sits on a piece of graph paper. " loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/news-events/news/2021/09/spotlight-stability-boosting-swap-our-chip-scale-clock"><span property="schema:name">Spotlight: A Stability-Boosting Swap for Our Chip-Scale Clock</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2021-09-20T12:00:00Z">September 20, 2021</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">Stable is the chip-scale clock that uses a different laser, or so says the latest research from NIST physicists. Our scientists replaced an old infrared</div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20230306063115/https://www.nist.gov/news-events/news-updates/org/5961">View All News and Updates</a></div> </footer> </div> </div> </div> </div> </div> <div class="paragraph paragraph--type--dynamic-content-list-ou paragraph--view-mode--default"> <div class="nist-block "> <h2 class="nist-block__title"> <div class="string">Projects and Programs</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-2fee77ae0443e92e3641fee161b8d071884c50ee3ec6aed85724e0c797bab47e"> <div> <article role="article" about="/programs-projects/bringing-si-global-atmospheric-greenhouse-gas-measurement" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/programs-projects/bringing-si-global-atmospheric-greenhouse-gas-measurement"><span>Bringing the SI to Global Atmospheric Greenhouse Gas Measurement</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div> </div> </header> <div class="nist-teaser__content"> <div class="text-long"> We are developing a comprehensive next-generation greenhouse gas (GHG) calibration system capable of extending SI traceability to global satellite remote </div> </div> </div> </article> </div> <div> <article role="article" about="/programs-projects/calcium-thermal-beam-optical-clock" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/programs-projects/calcium-thermal-beam-optical-clock" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/pml/div688/grp80/caphoto_3.jpg?itok=Jp1sI9Wa" width="100" height="75" alt="CaPhoto" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/programs-projects/calcium-thermal-beam-optical-clock"><span>Calcium Thermal Beam Optical Clock</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div> </div> </header> <div class="nist-teaser__content"> <div class="text-long"> A simple, compact alternative to the highest performing optical standards, the Ca clock uses a thermal beam of neutral atoms with one or two lasers to achieve </div> </div> </div> </article> </div> <div> <article role="article" about="/programs-projects/compact-cold-atom-instruments" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/programs-projects/compact-cold-atom-instruments" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/pml/div688/grp90/cold-atom-clock-07-13.jpg?itok=GJOUxDLq" width="66" height="100" alt="Compact Cold Atom Clock" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/programs-projects/compact-cold-atom-instruments"><span>Compact Cold Atom Instruments</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div> </div> </header> <div class="nist-teaser__content"> <div class="text-long"> The cooling of atoms to microkelvin temperatures using lasers is currently enabling a new generation of precision instruments that take advantage of the long </div> </div> </div> </article> </div> <div> <article role="article" about="/programs-projects/femtosecond-laser-frequency-combs-optical-clocks" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/programs-projects/femtosecond-laser-frequency-combs-optical-clocks" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/pml/div688/grp80/fslaser_1.jpg?itok=snANW_Xb" width="100" height="42" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/programs-projects/femtosecond-laser-frequency-combs-optical-clocks"><span>Femtosecond-Laser Frequency Combs for Optical Clocks</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div> </div> </header> <div class="nist-teaser__content"> <div class="text-long"> We develop self-referenced mode-locked femtosecond lasers that function as the "gears" of optical clocks. The femtosecond laser clockwork is capable of phase </div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20230306063115/https://www.nist.gov/laboratories/projects-programs/org/5961">View All Projects/Programs</a></div> </footer> </div> </div> </div> </div> </div> <div class="paragraph paragraph--type--dynamic-content-list-ou paragraph--view-mode--default"> <div class="nist-block "> <h2 class="nist-block__title"> <div class="string">Awards</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-61f82fc79e32e6f456e195283a3a3ae697cf6e821b7fd42aedf9a3f9cd13f16b"> <div> <article role="article" about="/nist-awards/2022-distinguished-career-award-michael-lombardi" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-distinguished-career-award-michael-lombardi" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2022/12/20/Lombardi.DistinguishedService.jpg?itok=rF1L_vMe" width="67" height="100" alt="Michael Lombardi Distinguished Service" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-distinguished-career-award-michael-lombardi"><span>2022 - Distinguished Career Award---Michael Lombardi</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For a career of sustained excellence in the leadership of NIST鈥檚 mission-essential time and frequency distribution services.</div> </div> </div> </article> </div> <div> <article role="article" about="/nist-awards/2022-jacob-rabinow-applied-research-award-dietrich-leibfried-daniel-slichter-andrew" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-jacob-rabinow-applied-research-award-dietrich-leibfried-daniel-slichter-andrew" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2022/12/21/Group_1.Leibfried%2CWilson%2CSlichter-Rabinow.jpg?itok=gyvt7O4F" width="100" height="56" alt="Dietrich Leibfried, Andrew Wilson and Daniel Slichter Rabinow award" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-jacob-rabinow-applied-research-award-dietrich-leibfried-daniel-slichter-andrew"><span>2022 - Jacob Rabinow Applied Research Award---Dietrich Leibfried, Daniel Slichter, Andrew Wilson</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For providing critical expertise in trapped-ion quantum information processing to industry stakeholders in support of the emerging quantum economy.</div> </div> </div> </article> </div> <div> <article role="article" about="/nist-awards/2022-silver-medal-award-michael-bartock-jonathan-hardis-ya-shian-li-baboud-james" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-silver-medal-award-michael-bartock-jonathan-hardis-ya-shian-li-baboud-james" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/01/18/SILVER_Hardis.Rezcek.Bartock.Li-Baboud.shermna.brown_.lombardi.levine-comp.jpg?itok=2c9s3nG8" width="100" height="30" alt="2022 Silver Medal Awardees" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-silver-medal-award-michael-bartock-jonathan-hardis-ya-shian-li-baboud-james"><span>2022 - Silver Medal Award---Michael Bartock, Jonathan Hardis, Ya-Shian Li-Baboud, James McCarthy, Suzanne Lightman, Karen K. Reczek, Jeffrey Sherman, Roger Brown, Michael Lombardi, Judah Levine</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For strengthening the resilience of position, navigation, and timing infrastructure and services on which global commerce and national security rely.</div> </div> </div> </article> </div> <div> <article role="article" about="/nist-awards/2022-dean-staff-award-judah-levine" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-dean-staff-award-judah-levine" hreflang="en"><img src="/web/20230306063115im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/01/18/DeanofStaff-judah.levin_.jpg?itok=Pns1Ip4x" width="100" height="81" alt="Dean of Staff awardee Judah Levine" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/nist-awards/2022-dean-staff-award-judah-levine"><span>2022 - Dean of Staff Award---Judah Levine</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">The Dean of Staff award honors the current employee with the longest tenure at NIST. The honoree receives a framed copy of an antique print of pioneering scientist Michael Faraday. A rare carbon print of this photo, now in NIST鈥檚 historical artifact collection, hung in the office of the first three NIST directors for four decades.</div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20230306063115/https://www.nist.gov/awards/org/5961">View All Awards</a></div> </footer> </div> </div> </div> </div> </div> <div class="paragraph paragraph--type--dynamic-content-list-ou paragraph--view-mode--default"> <div class="nist-block "> <h2 class="nist-block__title"> <div class="string">Patents</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-b01c28e2a81e425ba953308139c0062ee923922d10df85bfc70c5c55713405a9"> <div> <article role="article" about="/patents/ultrafast-electro-optic-laser" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/patents/ultrafast-electro-optic-laser"><span>Ultrafast Electro-optic Laser</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-field nist-field--label-inline"> <div class="nist-field__label">NIST Inventors</div> Scott Papp , Scott Diddams and David Carlson </div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary">patent description Our invention is for an ultrafast light source that produces femtosecond pulses with sub-cycle timing jitter using electro-optic switching of a continuous-wave (cw) laser. The apparatus is composed of the following key elements: 1) an electro-optic (EO) frequency comb, 2) a</div> </div> </div> </article> </div> <div> <article role="article" about="/patents/process-making-alkali-metal-vapor-cells" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/patents/process-making-alkali-metal-vapor-cells"><span>PROCESS FOR MAKING ALKALI METAL VAPOR CELLS</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-field nist-field--label-inline"> <div class="nist-field__label">NIST Inventors</div> John Kitching </div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary"></div> </div> </div> </article> </div> <div> <article role="article" about="/patents/optical-reference-cavity" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/patents/optical-reference-cavity"><span>Optical Reference Cavity</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-field nist-field--label-inline"> <div class="nist-field__label">NIST Inventors</div> Franklyn Quinlan , Scott Diddams and Andrew Ludlow </div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary">Patent Description We have demonstrated an easy-to-manufacture 25-mm-long ultra-stable optical reference cavity geared toward transportable photonic microwave generation systems and mobile optical atomic clock applications. The cavity can be rigidly held in a way that is first-order insensitive to</div> </div> </div> </article> </div> <div> <article role="article" about="/patents/methods-and-apparatus-generating-mid-infrared-frequency-combs" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230306063115/https://www.nist.gov/patents/methods-and-apparatus-generating-mid-infrared-frequency-combs"><span>METHODS AND APPARATUS FOR GENERATING MID-INFRARED FREQUENCY COMBS</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-field nist-field--label-inline"> <div class="nist-field__label">NIST Inventors</div> Scott Diddams , Scott Papp , Abijith Kowligy and Alexander Lind </div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary">patent description We present a new approach to generating a coherent comb of infrared frequencies utilizing intra颅 pulse difference frequency generation. The central claims of this invention are: A simple technique to generate few-cycle pulses derived from an amplified Er:fiber mode颅 locked laser</div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/patents/org/5961">View All Patents</a></div> </footer> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="grid-row"> <div class="nist-resource-block nist-resource-block--first tablet:grid-col"> <div class="nist-resource-block__title-bar"> <div class="nist-resource-block__title"> <div class="nist-resource-block__icon"> <img aria-hidden="true" role="img" alt="decorative icon" src="/web/20230306063115im_/https://www.nist.gov/themes/custom/nist_www/img/resource-icons/link-icon-2x.png"/> </div> <h2> <div class="string">Nobel Prize</div> </h2> </div> </div> <div class="nist-resource-block__content"> <div class="nist-block"> <div class="text-long"><p><strong>2012 Nobel Prize in Physics to Dave Wineland of NIST Time and Frequency Division</strong></p> <p>Dave Wineland, of the Ion Storage Group, shares the 2012 Nobel Prize in Physics with Serge Haroche of France "for ground-breaking experimental methods that enable measuring and manipulation of individual quantum systems." Dave and his colleagues use these techniques for research in quantum information processing, quantum simulation, atomic clocks, and other areas.</p> <p><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/pml/time-and-frequency-division/ion-storage">More information about the聽Ion Storage Group can be found here.</a></p> <p>For more information about the 2012 Nobel Prize in Physics, please see the <a href="https://web.archive.org/web/20230306063115/https://www.nobelprize.org/prizes/physics/2012/summary/">Nobel Prize organization site</a>.</p></div> </div> </div> </div> <div class="nist-resource-block nist-resource-block--second nist-resource-block--green tablet:grid-col"> <div class="nist-resource-block__title-bar"> <div class="nist-resource-block__title"> <div class="nist-resource-block__icon"> <img aria-hidden="true" role="img" alt="decorative icon" src="/web/20230306063115im_/https://www.nist.gov/themes/custom/nist_www/img/resource-icons/publication-icon-2x.png"/> </div> <h2> <div class="string">Selected Publications</div> </h2> </div> </div> <div class="nist-resource-block__content"> <div class="nist-block"> <div class="text-long"><ul><li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/publications/atomic-clock-10-18-instability">An Atomic Clock with 10<sup>-18</sup> Instability</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/publications/quantum-spin-dynamics-and-entanglement-generation-hundreds-trapped-ions">Quantum spin dynamics and entanglement generation with hundreds of trapped ions</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/publications/wwvb-radio-controlled-clocks-recommended-practices-manufacturers-and-consumers-2009">WWVB Radio Controlled Clocks: Recommended Practices for Manufacturers and Consumers (2009 edition)</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/publications/complete-methods-set-scalable-ion-trap-quanum-information-processing">Complete Methods Set for Scalable Ion Trap Quantum Information Processing</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/publications/spin-12-optical-lattice-clock">A Spin-1/2 Optical Lattice Clock</a></li> <li><a href="https://web.archive.org/web/20230306063115/https://www.nist.gov/publications/nist-chip-realizing-si-units-microfabricated-alkali-vapour-cells">NIST on a Chip: Realizing SI units with microfabricated alkali vapour cells</a></li> </ul></div> </div> </div> </div> </div> <div class="grid-container"> <div class="nist-page__region nist-page__region--content-bottom"> <div class="nist-block nist-block--contact"> <h2 class="nist-block__title">Contacts</h2> <div class="nist-contact"> <h3 class="nist-contact__heading">Division Chief</h3> <ul class="nist-contact__items"> </ul> </div> <div 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