Absolute optical frequency measurement of the cesium<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>line

Th. Udem, J. Reichert, T. W. Hänsch, M. Kourogi

doi:10.1103/physreva.62.031801

Absolute optical frequency measurement of the cesium<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>line

DOI Web Site Web Site 被引用文献4件

書誌事項

公開日: 2000-08-02

権利情報

http://link.aps.org/licenses/aps-default-license

DOI

10.1103/physreva.62.031801

公開者: American Physical Society (APS)

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説明

We have performed an absolute optical frequency measurement of the cesium ${D}_{2}$ line at 352 THz (852 nm). This frequency is an important scaling parameter in atomic interferometry. The ${D}_{2}$ line has been compared with the fourth harmonic of a methane stabilized He-Ne laser at $88.4 \mathrm{THz}$ $(3.39 \ensuremath{\mu}\mathrm{m}).$ A frequency mismatch of $1.78 \mathrm{THz}$ between $4\ifmmode\times\else\texttimes\fi{}88.4 \mathrm{THz}=354 \mathrm{THz}$ and the ${D}_{2}$ line was bridged with an optical frequency comb generator. We find ${f}_{D2}=351725718.50(11) \mathrm{MHz}$ for the hyperfine centroid, improving previous results by almost two orders of magnitude.