使用电光调制器实现46 GHz偏移的激光频率锁定，用于铷原子的磁光捕获。 （注：原文中是francium atoms，译文里前面误写成铷原子，实际应该是钫原子，这里按正确内容修改后译文为：使用电光调制器实现46 GHz偏移的激光频率锁定，用于钫原子的磁光捕获。）
Laser frequency locking with 46 GHz offset using an electro-optic modulator for magneto-optical trapping of francium atoms.
作者信息
Harada K, Aoki T, Ezure S, Kato K, Hayamizu T, Kawamura H, Inoue T, Arikawa H, Ishikawa T, Aoki T, Uchiyama A, Sakamoto K, Ito S, Itoh M, Ando S, Hatakeyama A, Hatanaka K, Imai K, Murakami T, Nataraj H S, Shimizu Y, Sato T, Wakasa T, Yoshida H P, Sakemi Y
出版信息
Appl Opt. 2016 Feb 10;55(5):1164-9. doi: 10.1364/AO.55.001164.
We demonstrate frequency offset locking between two laser sources using a waveguide-type electro-optic modulator (EOM) with 10th-order sidebands for magneto-optical trapping of Fr atoms. The frequency locking error signal was successfully obtained by performing delayed self-homodyne detection of the beat signal between the repumping frequency and the 10th-order sideband component of the trapping light. Sweeping the trapping-light and repumping-light frequencies with keeping its frequency difference of 46 GHz was confirmed over 1 GHz by monitoring the Doppler absorption profile of I₂. This technique enables us to search for a resonance frequency of magneto-optical trapping of Fr.
我们展示了使用具有十阶边带的波导型电光调制器（EOM）在两个激光源之间进行频率偏移锁定，用于对Fr原子进行磁光捕获。通过对再泵浦频率与捕获光的十阶边带分量之间的拍频信号进行延迟自外差检测，成功获得了频率锁定误差信号。通过监测I₂的多普勒吸收谱，在频率差保持为46 GHz的情况下，在超过1 GHz的范围内对捕获光和再泵浦光的频率进行扫描得到了确认。该技术使我们能够搜索Fr磁光捕获的共振频率。
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