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Infrared imaging in nonlinear GaAs metasurfaces
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Paper Abstract

Dielectric metasurfaces have recently shown to be an excellent candidate for efficient frequency mixing at the nanoscale due to the excitation of Mie resonances. Among various dielectric materials, GaAs-based nanostructures have been reported to have high-efficiency of second-order nonlinear processes due to their high quadratic nonlinear susceptibility. Efficient frequency up-conversion can thereby be realised in GaAs-based metasurfaces through the process of sum-frequency generation (SFG), thereby opening new opportunities for nonlinear imaging and infrared vision not possible before. Here we demonstrate for the first time, infrared imaging based on nonlinear mixing of an infrared image with a pump beam in a GaAs resonant metasurface. The nonlinear mixing process generates visible images (Fig. 1a), which can be time resolved with femtosecond resolution and can be observed on a conventional CMOS sensor. Our results open new opportunities for the development of compact night-vision devices operating at room temperature and have multiple applications in defense and life sciences.

Paper Details

Date Published: 31 December 2019
PDF: 2 pages
Proc. SPIE 11201, SPIE Micro + Nano Materials, Devices, and Applications 2019, 112011S (31 December 2019); doi: 10.1117/12.2541224
Show Author Affiliations
Maria Camacho Morales, The Australian National Univ. (Australia)
Davide Rocco, Univ. degli Studi di Brescia (Italy)
Lei Xu, The Univ. of New South Wales (Australia)
Mohsen Rahmani, The Australian National Univ. (Australia)
Valerio Flavio Gili, Friedrich-Schiller-Univ. Jena (Germany)
Andrei Komar, The Australian National Univ. (Australia)
Nikolay Dimitrov, Sofia Univ. "St. Kliment Ohridski" (Bulgaria)
Lyubomir Stoyanov, Sofia Univ. "St. Kliment Ohridski" (Bulgaria)
Mykhaylo Lysevych, The Australian National Univ. (Australia)
Fouad Karouta, The Australian National Univ. (Australia)
Alexander Dreischuh, Sofia Univ. "St. Kliment Ohridski" (Bulgaria)
H. Hoe Tan, The Australian National Univ. (Australia)
Giuseppe Leo, Univ. Paris Diderot (France)
Costantino De Angelis, Univ. degli Studi di Brescia (Italy)
Chennupati Jagadish, The Australian National Univ. (Australia)
Andrey E. Miroshnichenko, The Univ. of New South Wales (Australia)
Dragomir N. Neshev, The Australian National Univ. (Australia)


Published in SPIE Proceedings Vol. 11201:
SPIE Micro + Nano Materials, Devices, and Applications 2019
M. Cather Simpson; Saulius Juodkazis, Editor(s)

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