Development of laser sources with a sub-Hertz linewidth using

使用亚赫兹线宽开发激光源

• 批准号: 23656042
• 负责人: TORII Yoshio
• 金额: $ 2.41万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656042/
• 关键词: レーザー; 量子エレクトロニクス; 分光; 半導体レーザー; ホローカソードランプ; ストロンチウム; 偏光分光; ヒートパイプ

We have proven that the mechanism of laser linewidth reduction using the traditionalPound-Drever-Hall method is mathematically equivalent to that using the signal of polarization spectroscopy provided that the optical density of the atomic sample is well below unity. A proof-of-principle experiment was conducted using a Rb vapor cell. We performed polarization spectroscopy of Li6 and proved that the saturation of the transition caused by the pump beam enables polarization spectroscopy without spin polarization. As a source of Sr for spectroscopy, we examine the performance of the Sr hollow cathode lampusing the 461nm（1S0-1P1）transition and proved that polarization spectroscopy relying onpump-beam-induced saturation was possible even in a hollow cathode discharge.

我们证明了在原子样品的光密度远低于1的情况下，用传统的Pound-Drever-Hall方法减小激光线宽的机理与用偏振光谱信号进行激光线宽缩减的机理是数学等价的。利用RB蒸汽室进行了原理验证实验。我们对Li6进行了偏振光谱实验，证明了由于泵浦光引起的跃迁饱和，使得偏振光谱不存在自旋极化现象。作为锶的光源，我们研究了461 nm(1S0-1P1)跃迁的锶空心阴极灯的性能，证明了即使在空心阴极放电中，依赖于泵浦光束诱导饱和的偏振光谱也是可能的。

项目成果

Laser phase and frequencystabilization using atomic coherence,NICT Workshop on the Optical Frequency Standard

利用原子相干性实现激光相位和频率稳定，NICT 光频率标准研讨会

• 发表时间: 2013
• 作者: K.Toyoda;K.Miyamoto;N.Aoki;R.Morita;T.Omatsu;Yoshio Torii
• 通讯作者: Yoshio Torii

A 461 nm Laser System and Hollow-Cathode Lamp Spectroscopy for Magneto-Optical Trapping of Sr Atoms

• DOI: 10.1143/jpsj.81.034401
• 发表时间: 2012-02
• 期刊: Journal of the Physical Society of Japan
• 影响因子: 1.7
• 作者: T. Aoki;Kota Umezawa;Y. Yamanaka;N. Takemura;Y. Sakemi;Y. Torii

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Laser-phase and frequency stabilization using atomic coherence

• DOI: 10.1103/physreva.86.033805
• 发表时间: 2012-01
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Y. Torii;H. Tashiro;N. Ohtsubo;T. Aoki

Arバッファーガス中での6Li原子の偏光分光

Ar 缓冲气体中 6Li 原子的偏振光谱

• 发表时间: 2011
• 作者: 大坪望;生駒大祐;青木貴稔;鳥井寿夫
• 通讯作者: 鳥井寿夫