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10 March 2020 Optical harmonic generation from semiconductor metasurfaces (Conference Presentation)
Carlo Gigli, Giuseppe Marino, Davide Rocco, Costantino De Angelis, Grégoire Beaudoin, Konstaninos Pantzas, Gilles Patriarche, Isabelle Sagnes, Aristide Lemaître, Giuseppe Leo
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Proceedings Volume 11288, Quantum Sensing and Nano Electronics and Photonics XVII; 112881C (2020) https://doi.org/10.1117/12.2544535
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
All-dielectric optical metasurfaces consist of 2D arrangements of nanoresonators and are of great importance for shaping polarization, phase and amplitude of both linear and harmonic fields. Here, we demonstrate the generation of second harmonic (SH) with zero-order diffraction from nonlinear AlGaAs metasurfaces with spatial period comparable with a pump wavelength in the near-IR. Upon normal incidence of the pump, we demonstrate paraxial SH light into the zero order. SH polarization is effectively controlled via either the meta-atom shape or the pump polarization, with potential applications for on-axis imaging and free-space communication systems.
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Carlo Gigli, Giuseppe Marino, Davide Rocco, Costantino De Angelis, Grégoire Beaudoin, Konstaninos Pantzas, Gilles Patriarche, Isabelle Sagnes, Aristide Lemaître, and Giuseppe Leo "Optical harmonic generation from semiconductor metasurfaces (Conference Presentation)", Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112881C (10 March 2020); https://doi.org/10.1117/12.2544535
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KEYWORDS
Harmonic generation
Polarization
Semiconductors
Diffraction
Optical properties
Light scattering
Metamaterials
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