[8a-C213-1~13] 3.8 Terahertz technologies

12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)

[8a-C213-12] THz frequency stabilization via synthetic-FM-triplet

〇Kohei Eguchi^1,2, Koichiro Tanaka^2,3 (1.Dept. of Phys., Kyoto Univ., 2.HIKARI-COOL Kyoto, Institute for Advanced Study, Kyoto Univ., 3.RIKEN Center for Advanced Photonics)

Keywords:

frequency stabilization,rotational transition,terahertz

We demonstrated terahertz synthetic-FM-triplet generation and used it for frequency stabilization to an acetonitrile rotational transition. This approach provided a clean derivative-shaped signal with no influence from the nearby fine-structure transition. Dual-servo locking based on this signal achieved a fractional frequency instability of 1x10^-9 at 1 s.