Hot Paper - Advancing nonlinear nanophotonics: harnessing membrane metasurfaces for third-harmonic generation and imaging

Advancing nonlinear nanophotonics: harnessing membrane metasurfaces for third-harmonic generation and imaging

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Avance de la Nanofotónica no lineal: generación e imagen de terceros armónicos utilizando supersuperficies de membrana
Faire progresser la nanophotonique non linéaire: génération et imagerie de troisième harmonique à l'aide de supersurfaces membranaires
Продвижение нелинейной нанофотоники: создание и визуализация трех гармоник с использованием мембранной суперповерхности

Mingbo Pu 蒲明博 ¹ ² ³ ⁴, Xiangang Luo 罗先刚 ¹ ² ³ ⁴

¹ State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
中国成都中国科学院光电技术研究所微细加工光学技术国家重点实验室
² Key Laboratory of Optical Field Manipulation Science and Technology, Chinese Academy of Sciences, Chengdu 610209, China
中国成都中国科学院光场调控科学技术全国重点实验室
³ Research Center on Vector Optical Fields, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
中国成都中国科学院光电技术研究所矢量光场研究中心
⁴ School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
中国北京中国科学院大学光电学院

https://doi.org/10.29026/oea.2023.230153

https://www.oejournal.org/article/doi/10.29026/oea.2023.230153

Opto-Electronic Advances, 31 August 2023

Abstract

Dielectric metasurfaces are crucial for enhancing optical nonlinear generation, particularly membrane metasurfaces with multipolar resonances and compact size. Investigating silicon dimer-hole membrane metasurfaces, Rahmani, and Xu show how bound states in the continuum (BICs) can be formed and transformed into quasi-BICs by adjusting hole gaps. This innovation enables efficient conversion of infrared images to visible range, promising applications in nonlinear photonics and near-infrared imaging technologies.

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