High sensitivity air-coupled MHz frequency ultrasound detection using on-chip microcavities

Owing to their dual-resonance enhanced sensitivity, cavity optomechanical systems provide an ideal platform for ultrasound sensing. In this work, we realize high sensitivity air-coupled ultrasound sensing from kilohertz (kHz) to megahertz (MHz) frequency range based on whispering gallery mode microc...

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Veröffentlicht in:	arXiv.org 2022-06
Hauptverfasser:	Yang, Hao, Hu, Zhi-Gang, Yuechen Lei, Cao, Xuening, Wang, Min, Sun, Jialve, Li, Changhui, Zuo, Zhanchun, Xu, Xiulai, Li, Bei-Bei
Format:	Artikel
Sprache:	eng
Schlagworte:	Frequency ranges Noise sensitivity Q factors Resonance Sensitivity enhancement Sidebands Ultrasonic imaging
Online-Zugang:	Volltext
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