Nano-Optomechanical Resonators in Microfluidics
نویسندگان
چکیده
منابع مشابه
On-chip nano-optomechanical whispering gallery resonators
This thesis work focuses on the design, fabrication and measurement of Gallium Arsenide (GaAs) nano-optomechanical disk resonators. These disks are both GHz frequency mechanical resonators, and high Q (> 10) optical whispering gallery mode resonators. By confining optical and mechanical energy on a sub-μm volume, they enable extremely large optomechanical coupling strengths (g0 >1 MHz). We pres...
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Planar microcavities with distributed Bragg reflectors (DBRs) host, besides confined optical modes, also mechanical resonances due to stop bands in the phonon dispersion relation of the DBRs. These resonances have frequencies in the 10- to 100-GHz range, depending on the resonator's optical wavelength, with quality factors exceeding 1,000. The interaction of photons and phonons in such optomech...
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J. R. Johansson,1,* G. Johansson,2 and Franco Nori3,4 1iTHES Research Group, RIKEN, Wako-shi, Saitama 351-0198, Japan 2Microtechnology and Nanoscience, MC2, Chalmers University of Technology, SE-412 96 Göteborg, Sweden 3CEMS, RIKEN, Wako-shi, Saitama 351-0198, Japan 4Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA (Received 4 April 2014; published 18 November ...
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Cavity optomechanical systems offer one of the most sensitive methods for detecting mechanical motion using shifts in the optical resonance frequency of the optomechanical resonator. Presently, these systems are used for measuring mechanical thermal noise displacement or mechanical motion actuated by optical forces. Electrostatic capacitive actuation and detection have been shown previously for...
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We analyze the magnitude of the radiation pressure and electrostrictive stresses exerted by light confined inside GaAs semiconductor WGM optomechanical disk resonators, through analytical and numerical means, and find the electrostrictive stress to be of prime importance. We investigate the geometric and photoelastic optomechanical coupling resulting respectively from the deformation of the dis...
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ژورنال
عنوان ژورنال: Nano Letters
سال: 2015
ISSN: 1530-6984,1530-6992
DOI: 10.1021/acs.nanolett.5b02388