[19p-E205-1~19] 3.6 Ultrashort-pulse and high-intensity lasers

[19p-E205-16] Improvement of OAM Detection Performance using Dual-vortex-comb Spectroscopy

〇Akifumi Asahara^1,2, Takuto Adachi^1,2, Kaoru Minoshima^1,2 (1.UEC, 2.JST,ERATO MINOSHIMA IOS)

Keywords:Optical comb, Optical vortex, Orbital Angular Momentum

We have proposed the concept of "optical-vortex-comb," which realizes precise spatiotemporal phase control by combining optical comb and optical vortex. In the last JSAP presentation, we proposed the concept "OAM-resolved dual-vortex-comb spectroscopy," that can evaluate optical vortices with arbitrary orbital angular momentum (OAM). In this presentation, we will talk about the improvement of detection performance of our developing method and the potential as multiplied OAM detection technique.