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Proceedings Paper

Mass sensor based on split-nanobeam optomechanical oscillator
Author(s): Yeping Zhang; Jie Ai; Yanjun Xiang; Qinghua He; Tao Li; Jingfang Ma
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Paper Abstract

Mass sensing based on monitoring the frequency shifts induced by added mass in oscillators is a well-known and widely used technique. The optomechanical crystal cavity has strong interaction between optical mode and mechanical mode. Radiation pressure driven optomechanical crystal cavity are excellent candidates for mass detection due to their simplicity, sensitivity and all optical operation. In an optomechanical crystal cavity, a high quality factor optical mode simultaneously serves as an efficient actuator and a sensitive probe for precise monitoring the mechanical frequency change of the cavity structure. Here, a split-nanobeam optomechanical crystal cavity is proposed, the sensing resolution as small as 0.33ag (1ag=10-21kg) and the frequency shift is more than 30MHz. This is important and promising for achieve ultimate-precision mass sensing including proteins and other molecules.

Paper Details

Date Published: 8 March 2017
PDF: 6 pages
Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102552U (8 March 2017); doi: 10.1117/12.2264591
Show Author Affiliations
Yeping Zhang, Institute of Fluid Physics (China)
Jie Ai, Institute of Fluid Physics (China)
Yanjun Xiang, Institute of Fluid Physics (China)
Qinghua He, Institute of Fluid Physics (China)
Tao Li, Institute of Fluid Physics (China)
Jingfang Ma, Institute of Fluid Physics (China)


Published in SPIE Proceedings Vol. 10255:
Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016
Yueguang Lv; Jialing Le; Hesheng Chen; Jianyu Wang; Jianda Shao, Editor(s)

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