[10p-F212-1~14] 3.9 Optical quantum physics and technologies

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[10p-F212-11] Evaluation of the laser source used for Cs 6S-7P MOT by an optical frequency comb based on a highly stable RF reference

〇HIRO MITA¹, Arata Kawasaki¹, Tsubasa Kashimura¹, Feng-Lei Hong^1,2, Kanta Asakawa¹, Daisuke Akamatsu¹ (1.YNU, 2.IMS YNU)

Keywords:

optical frequency comb,laser cooling,magneto optical trap

Conventionally, the 6S-6P transition has been utilized for the laser cooling of Cesium (Cs) atoms. Meanwhile, the 6S-7P transition possesses a narrower linewidth compared to the 6S-6P transition, and is thus expected to achieve cooling to even lower temperatures. Therefore, we have conducted research on a magneto-optical trap utilizing the 6S-7P transition of Cs atoms and developed a light source for this cooling process. Furthermore, to evaluate the frequency stability of the light source, we developed an optical frequency comb referenced to a highly stable RF signal. In this presentation, we will report on the development of this optical frequency comb and the evaluation of the cooling light source.