The 79th JSAP Autumn Meeting, 2018

Presentation information

Oral presentation

3 Optics and Photonics » 3.6 Ultrashort-pulse and high-intensity lasers

[20a-211A-1~10] 3.6 Ultrashort-pulse and high-intensity lasers

Thu. Sep 20, 2018 9:15 AM - 12:00 PM 211A (211-1)

Hajime Inaba(AIST)

9:15 AM - 9:30 AM

[20a-211A-1] Precise Interferometric Measurements for Information along Azimuth Axis using Dual-optical-vortex-comb Spectroscopy

Akifumi Asahara1,2, Yue Wang1,2, Kaoru Minoshima1,2 (1.UEC, 2.JST,ERATO MINOSHIMA IOS)

Keywords:Optical comb, Optical vortex, Angle measurement

We have proposed a concept, “optical vortex comb,” that enables precise spatiotemporal phase control by combining optical combs with optical vortices. In this talk, we propose a novel interferometric measurement, “dual-optical-vortex-comb spectroscopy,” in which two optical-vortex-comb with different repetition frequencies and topological charges are applied, and we show results of proof-of-principle experiment. We demonstrate that this novel method extends the applicable dimension of optical comb measurements, and new kinds of angle measurements are realized.