Ultrafast all-optical second harmonic wavefront shaping
- URL: http://arxiv.org/abs/2311.05187v1
- Date: Thu, 9 Nov 2023 07:54:43 GMT
- Title: Ultrafast all-optical second harmonic wavefront shaping
- Authors: A. Sinelnik, S. H. Lam, F. Coviello, S. Klimmer, G. Della Valle,
D.-Y.Choi, T. Pertsch, G. Soavi, I. Staude
- Abstract summary: We experimentally realize a hybrid meta-optical system that enables complex control of the wavefront of light with pulse-duration limited dynamics.
Our results pave the way to robust encoding of information for free space optical links, while reaching response times compatible with real-world telecom applications.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Optical communication can be revolutionized by encoding data into the orbital
angular momentum of light beams. However, state-of-the-art approaches for
dynamic control of complex optical wavefronts are mainly based on liquid
crystal spatial light modulators or miniaturized mirrors, which suffer from
intrinsically slow response times. Here, we experimentally realize a hybrid
meta-optical system that enables complex control of the wavefront of light with
pulse-duration limited dynamics. Specifically, by combining ultrafast
polarization switching in a WSe2 monolayer with a dielectric metasurface, we
demonstrate second harmonic beam deflection and structuring of orbital angular
momentum on the femtosecond timescale. Our results pave the way to robust
encoding of information for free space optical links, while reaching response
times compatible with real-world telecom applications.
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