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Advances in Laser Linewidth Measurement Techniques: A Comprehensive Review. [PDF]
Micromachines (Basel)Liu Z +6 more
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The European Physical Journal Special Topics, 2009
The Idea of using cold atoms confined in an optical lattice for an optical clock was proposed in 2001 [1]. Since then, this idea became an experimental reality. We review here the contribution of LNE-SYRTE to these developments.
P Lemonde
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The Idea of using cold atoms confined in an optical lattice for an optical clock was proposed in 2001 [1]. Since then, this idea became an experimental reality. We review here the contribution of LNE-SYRTE to these developments.
P Lemonde
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Cryogenic optical lattice clocks
Nature Photonics, 2015A pair of 87Sr optical lattice clocks with a statistical agreement of 2 × 10−18 within 6,000 s has been developed. To this end, the behaviour of the blackbody radiation—a major perturbation for optical lattice clocks—was directly investigated.
Masao Takamoto +2 more
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Frequency Comparison between Optical Lattice Clocks
2007 Conference on Lasers and Electro-Optics - Pacific Rim, 2007Two "optical lattice clocks", which based on spin-polarized fermionic 87Sr trapped in a one-dimensional optical lattice and on bosonic 88Sr in a three-dimensional lattice, were operated simultaneously. From a beat note between the two optical clocks, stability as well as accuracy of "optical lattice clocks" was evaluated.
Ryoichi Higashi +2 more
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Differential clock comparisons with a multiplexed optical lattice clock
Nature, 2022Rapid progress in optical atomic clock performance has advanced the frontiers of timekeeping, metrology and quantum science1-3. Despite considerable efforts, the instabilities of most optical clocks remain limited by the local oscillator rather than the atoms themselves4,5.
Xin Zheng +5 more
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Digest of the LEOS Summer Topical Meetings, 2005., 2005
We report on the precision spectroscopy of the 5s/sup 2/ /sup 1/S/sub o/(F=9/2)-5s5p /sup 3/P/sub o/(F=9/2) clock transition of /sup 87/Sr atoms trapped in a one-dimensional optical lattice and discuss its prospects as a future optical clock.
H. Katori +3 more
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We report on the precision spectroscopy of the 5s/sup 2/ /sup 1/S/sub o/(F=9/2)-5s5p /sup 3/P/sub o/(F=9/2) clock transition of /sup 87/Sr atoms trapped in a one-dimensional optical lattice and discuss its prospects as a future optical clock.
H. Katori +3 more
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Nature, 2005
The precision measurement of time and frequency is a prerequisite not only for fundamental science but also for technologies that support broadband communication networks and navigation with global positioning systems (GPS). The SI second is currently realized by the microwave transition of Cs atoms with a fractional uncertainty of 10(-15) (ref.
Masao, Takamoto +3 more
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The precision measurement of time and frequency is a prerequisite not only for fundamental science but also for technologies that support broadband communication networks and navigation with global positioning systems (GPS). The SI second is currently realized by the microwave transition of Cs atoms with a fractional uncertainty of 10(-15) (ref.
Masao, Takamoto +3 more
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Optics and Photonics News, 2015
A new breed of atomic clock—the “ticking” of which comes from transitions in millions of cooled atoms, trapped in optical standing waves created by tightly focused lasers—is pushing scientific timekeeping to previously unknown frontiers of precision.
Christopher W. Oates, Andrew D. Ludlow
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A new breed of atomic clock—the “ticking” of which comes from transitions in millions of cooled atoms, trapped in optical standing waves created by tightly focused lasers—is pushing scientific timekeeping to previously unknown frontiers of precision.
Christopher W. Oates, Andrew D. Ludlow
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MAPAN, 2012
Latest progress in optical atomic clocks is so rapid that serious discussions toward the redefinition of the second is initiated. Besides single ion clocks developed since early 1980s, optical lattice clocks just invented a decade ago are one of strong candidates as a method to realize the revised definition.
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Latest progress in optical atomic clocks is so rapid that serious discussions toward the redefinition of the second is initiated. Besides single ion clocks developed since early 1980s, optical lattice clocks just invented a decade ago are one of strong candidates as a method to realize the revised definition.
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