Tunable linear and quadratic optomechanical coupling for a tilted membrane within an optical cavity: theory and experiment

被引:45
|
作者
Karuza, M. [1 ,2 ,3 ,4 ]
Galassi, M. [1 ,2 ]
Biancofiore, C. [1 ,2 ]
Molinelli, C. [1 ,2 ]
Natali, R. [1 ,2 ]
Tombesi, P. [1 ,2 ]
Di Giuseppe, G. [1 ,2 ]
Vitali, D. [1 ,2 ]
机构
[1] Univ Camerino, Sch Sci & Technol, Div Phys, I-62032 Camerino, MC, Italy
[2] Ist Nazl Fis Nucl, Sez Perugia, Perugia, Italy
[3] Univ Rijeka, Dept Phys, Rijeka 51000, Croatia
[4] Univ Rijeka, Ctr Micro & Nano Sci & Technol, Rijeka 51000, Croatia
关键词
optical cavity; optomechanical systems; radiation pressure interaction; RADIATION-PRESSURE; QUANTUM; OSCILLATOR; MIRROR; MOTION;
D O I
10.1088/2040-8978/15/2/025704
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present an experimental study of an optomechanical system formed by a vibrating thin semi-transparent membrane within a high-finesse optical cavity. We show that the coupling between the optical cavity modes and the vibrational modes of the membrane can be tuned by varying the membrane position and orientation. In particular, we demonstrate a large quadratic dispersive optomechanical coupling in correspondence with avoided crossings between optical cavity modes weakly coupled by scattering at the membrane surface. The experimental results are well explained by a first order perturbation treatment of the cavity eigenmodes.
引用
收藏
页数:10
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