Nonlinear Generation of THz Vortex Beams with Tunable Orbital Angular Momentum in Si Microdisks

Hailong Pi; Fei He; Jize Yan; Xu Fang

2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
OSA Technical Digest (Optica Publishing Group, 2021),
paper cc_p_14

Nonlinear Generation of THz Vortex Beams with Tunable Orbital Angular Momentum in Si Microdisks

Hailong Pi, Fei He, Jize Yan, and Xu Fang

The European Conference on Lasers and Electro-Optics 2021

Munich Germany
21–25 June 2021
ISBN: 978-1-6654-1876-8

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H. Pi, F. He, J. Yan, and X. Fang, "Nonlinear Generation of THz Vortex Beams with Tunable Orbital Angular Momentum in Si Microdisks," in 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, OSA Technical Digest (Optica Publishing Group, 2021), paper cc_p_14.

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Abstract

We demonstrate waveguide-coupled microdisks that emit THz light with tunable orbital angular momentum. The topological charge of the THz light can be tuned by changing the driving infrared wavelengths in the difference-frequency generation process.

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