9 ×10 -14 /√ via a clock self-comparison measurement. The new portable atomic clock, also a strontium optical lattice developed by researchers at the Physikalisch-Technische Bundesanstal in Germany, is not quite as accurate as the 2015 record-breaker. Secondly, I will discuss our recent demonstration of a fiber stimulated-Brillouin-scattering (SBS) laser used to run an optical 88Sr + ion clock, achieving short-term stability of 3. First, I will discuss progress towards chip-based ion array traps able to deliver all necessary ion control wavelengths via on-chip photonics and incorporating on-chip avalanche photodiodes (APDs) for ion state readout. In this talk, I will discuss two technologies we are developing at Lincoln Laboratory aimed at enabling compact, high-performance optical clocks based on trapped ions. Many applications in navigation and communications could benefit from smaller-size, fieldable optical clocks which can still achieve high performance. NIST’s compact two-photon vapor-cell clock can be used as an improved portable timing standard for various kinds of technologies, including as a backup to the satellite-based GPS. Yet these impressive devices still typically occupy the volume of an entire atomic physics lab, being constrained in size by numerous free-space optics required to direct control lasers to the atomic reference sample as well as the bulk-cavity stabilization system required to narrow the interrogation laser's linewidth to the requisite level. Optical clocks are among the most accurate measurement devices ever built, now surpassing the 10 -18 level of precision.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |