Molecular optomechanical springs for infrared metasurface detectors

Angelos Xomalis; Xuezhi Zheng; Rohit Chikkaraddy; Jeremy J. Baumberg

doi:10.1117/12.2594826

1 August 2021 Molecular optomechanical springs for infrared metasurface detectors

Angelos Xomalis, Xuezhi Zheng, Rohit Chikkaraddy, Jeremy J. Baumberg

Proceedings Volume 11795, Metamaterials, Metadevices, and Metasystems 2021; 1179520 (2021) https://doi.org/10.1117/12.2594826
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Optomechanical interactions allow coherent conversion of signals between optical and mechanical domains. Self-assembled metallic nanocavities containing single molecular layers act as mechanical springs/oscillators. Interaction of light and matter in these sub-nm mode volumes allows extreme optomechanical coupling and single mid-infrared (MIR) photon sensitivity. Here we achieve frequency upconversion of MIR incoming photons to visible photons via surface-enhanced Raman spectroscopy in doubly-resonant metasurfaces. Our results on efficient frequency upconversion of infrared radiation in visible regime via molecular optomechanics open new potential in plasmon-based low-cost infrared spectroscopic techniques.

Conference Presentation

Citation Download Citation

Angelos Xomalis, Xuezhi Zheng, Rohit Chikkaraddy, and Jeremy J. Baumberg "Molecular optomechanical springs for infrared metasurface detectors", Proc. SPIE 11795, Metamaterials, Metadevices, and Metasystems 2021, 1179520 (1 August 2021); https://doi.org/10.1117/12.2594826

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