Multiphysical sensing of light, sound and microwave in a microcavity Brillouin laser

Nanophotonics

article

Jianfan Yang¹  Tian Qin¹  Fangxing Zhang¹  Xianfeng Chen²  Xiaoshun Jiang³  Wenjie Wan¹ 

[1] The State Key Laboratory of Advanced Optical Communication Systems and Networks, University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University;MOE Key Laboratory for Laser Plasmas and Collaborative Innovation Center of IFSA, Department of Physics and Astronomy, Shanghai Jiao Tong University;National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University

关键词: microcavity;    multiphysical sensing;    optomechanics;   

DOI  :  10.1515/nanoph-2020-0176

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Light, sound, and microwave are important tools for many interdisciplinary applications in a multi-physical environment, and they usually are inefficient to be detected simultaneously in the same physical platform. However, at the microscopic scale, these waves can unexpectedly interact with the same microstructure through resonant enhancement, making it a unique hybrid micro-system for new applications across multiple physical channels. Here we experimentally demonstrate an optomechanical microdevice based on Brillouin lasing operation in an optical microcavity as a sensitive unit to sense external light, sound, and microwave signals in the same platform. These waves can induce modulations to the microcavity Brillouin laser (MBL) in a resonance-enhanced manner through either the pressure forces including radiation pressure force or thermal absorption, allowing several novel applications such as broadband non-photovoltaic detection of light, sound-light wave mixing, and deep-subwavelength microwave imaging. These results pave the way towards on-chip integrable optomechanical solutions for sensing, free-space secure communication, and microwave imaging.

【 授权许可】

CC BY