[19p-Z06-1~12] 3.6 Ultrashort-pulse and high-intensity lasers

[19p-Z06-10] Single-pixel Dual-comb Spectroscopy for Phase Detection of Multiplexed Optical Vortex

〇Akifumi Asahara¹, Takuto Adachi¹, Seishiro Akiyama¹, Kaoru Minoshima¹ (1.UEC)

Keywords:Optical comb, Optical vortex, Orbital angular momentum

We have proposed a concept of "optical-vortex-comb," which realizes precise spatiotemporal phase control by combining optical comb and optical vortex. In this study, we applied a measurement method combining “dual-comb spectroscopy” and “single-pixel imaging” to optical phase characterization of complex multiplexed optical vortices. Our result is expected as novel optical technology in a wide range of fields such as waveform shaping of optical vortices, chiral material study, and optical communication using transverse optical modes.