Optically mediated spatial localization of collective modes of two coupled cantilevers for high sensitivity optomechanical transducer

被引：26

作者：

Fu, Hao ^{[1
]}

Mao, Tian-hua ^{[1
,2
]}

Li, Yong ^{[3
]}

Ding, Jiang-fang ^{[1
,2
]}

Li, Jia-dong ^{[4
]}

Cao, Gengyu ^{[1
]}

机构：

[1] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China

[4] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Int Lab Adapt Bionanotechnol, Suzhou 215123, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ATTONEWTON FORCE DETECTION; OSCILLATOR; ARRAYS; CAVITY;

D O I：

10.1063/1.4889804

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate an optomechanical transducer based on two coupled cantilevers, where the spatially delocalized collective modes are optically optimized for highly sensitive detection. We show that the local densities of the collective modes on the cantilevers can be mediated effectively by optically tuning the intrinsic resonance of one cantilever. Taking the advantage of adiabatically mediating the spatial localization of collective mode, the environmental fluctuation proof measurement can be achieved by transferring the phononic information of one cantilever's motion to another free-standing low-loss cantilever. Further, theoretical analysis reveals that the transduction efficiency can also be enhanced by this optomechancial strategy. (C) 2014 AIP Publishing LLC.

引用

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