Infrared imaging in nonlinear GaAs metasurfaces

Maria Camacho Morales; Davide Rocco; Lei Xu; Mohsen Rahmani; Valerio Flavio Gili; Andrei Komar; Nikolay Dimitrov; Lyubomir Stoyanov; Mykhaylo Lysevych; Fouad Karouta; Alexander Dreischuh; H. Hoe Tan; Giuseppe Leo; Costantino De Angelis; Chennupati Jagadish; Andrey E. Miroshnichenko; Dragomir N. Neshev

doi:10.1117/12.2541224

31 December 2019 Infrared imaging in nonlinear GaAs metasurfaces

Maria Camacho Morales, Davide Rocco, Lei Xu, Mohsen Rahmani, Valerio Flavio Gili, Andrei Komar, Nikolay Dimitrov, Lyubomir Stoyanov, Mykhaylo Lysevych, Fouad Karouta, Alexander Dreischuh, H. Hoe Tan, Giuseppe Leo, Costantino De Angelis, Chennupati Jagadish, Andrey E. Miroshnichenko, Dragomir N. Neshev

Author Affiliations +

Proceedings Volume 11201, SPIE Micro + Nano Materials, Devices, and Applications 2019; 112011S (2019) https://doi.org/10.1117/12.2541224
Event: ANZCOP, 2019, Melbourne, Australia

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.

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Maria Camacho Morales, Davide Rocco, Lei Xu, Mohsen Rahmani, Valerio Flavio Gili, Andrei Komar, Nikolay Dimitrov, Lyubomir Stoyanov, Mykhaylo Lysevych, Fouad Karouta, Alexander Dreischuh, H. Hoe Tan, Giuseppe Leo, Costantino De Angelis, Chennupati Jagadish, Andrey E. Miroshnichenko, and Dragomir N. Neshev "Infrared imaging in nonlinear GaAs metasurfaces", Proc. SPIE 11201, SPIE Micro + Nano Materials, Devices, and Applications 2019, 112011S (31 December 2019); https://doi.org/10.1117/12.2541224

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KEYWORDS

Infrared imaging

Gallium arsenide

Visible radiation

Image processing

Dielectrics

Nonlinear optics

Physics

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