Infrared imaging via third-order nonlinear processes

Ze Zheng; Gabriel Sanderson; Cuifeng Ying; Lujun Huang; Arman Yousefi; Dragomir N. Neshev; Lei Xu; Mohsen Rahmani

doi:10.1117/12.2676856

4 October 2023 Infrared imaging via third-order nonlinear processes

Ze Zheng, Gabriel Sanderson, Cuifeng Ying, Lujun Huang, Arman Yousefi, Dragomir N. Neshev, Lei Xu, Mohsen Rahmani

Proceedings Volume PC12646, Metamaterials, Metadevices, and Metasystems 2023; PC126460A (2023) https://doi.org/10.1117/12.2676856
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

Here, we experimentally demonstrate broadband nonlinear imaging by using Si resonant metasurfaces based on third-order nonlinear processes, including third harmonic generation (THG) and four-wave mixing (FWM). Particularly, the quadratic dependence of the FWM emission on the pump power allows to significantly reduce the dependence on high-power signal input in nonlinear imaging via designing a high-Q resonance at the pump wavelength based on bound states in the continuum (BICs). In the experiment, our metasurfaces support high-performance infrared imaging, including a large acceptance angle, a high frame rate, and a wide range of operating wavelengths (from 900 nm to 2500 nm).

Conference Presentation

Citation Download Citation

Ze Zheng, Gabriel Sanderson, Cuifeng Ying, Lujun Huang, Arman Yousefi, Dragomir N. Neshev, Lei Xu, and Mohsen Rahmani "Infrared imaging via third-order nonlinear processes", Proc. SPIE PC12646, Metamaterials, Metadevices, and Metasystems 2023, PC126460A (4 October 2023); https://doi.org/10.1117/12.2676856

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