Sensitive infrared detection via optomechanical spring sensing

Chen Qian; Li He; Qiang Lin; Bo Zhen

doi:10.1117/12.3024918

2 October 2024 Sensitive infrared detection via optomechanical spring sensing

Chen Qian, Li He, Qiang Lin, Bo Zhen

Proceedings Volume 13110, Active Photonic Platforms (APP) 2024; 1311009 (2024) https://doi.org/10.1117/12.3024918
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

We propose to achieve sensitive, low-noise, and fast detection of incoherent thermal photons using a novel optomechanical spring sensing principle. In this unique active sensing approach, the coherent optomechanical oscillation (OMO) greatly amplifies the long-wavelength-infrared (LWIR)-induced eigenspectrum modification, leading to a noise-equivalent power (NEP) of < 0.07pW/Hz^1/2. Meanwhile, our detection signal bandwidth is only determined by the frequency-demodulation circuit, which can reach > 100kHz. Both performance parameters are revolutionary and significantly above the current state of the art. Our success, based on mature photonic integrated circuit platforms, can easily scale up to multipixel arrays.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chen Qian, Li He, Qiang Lin, and Bo Zhen "Sensitive infrared detection via optomechanical spring sensing", Proc. SPIE 13110, Active Photonic Platforms (APP) 2024, 1311009 (2 October 2024); https://doi.org/10.1117/12.3024918

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