Improved optomechanical disk resonator sitting on a pedestal mechanical shield

Nguyen, Dac Trung, Hease, William, Baker, Christopher, Gil-Santos, Eduardo, Senellart, Pascale, Lemaitre, Aristide, Ducci, Sara, Leo, Giuseppe and Favero, Ivan (2015) Improved optomechanical disk resonator sitting on a pedestal mechanical shield. New Journal of Physics, 17 023016-023016. doi:10.1088/1367-2630/17/2/023016


Author Nguyen, Dac Trung
Hease, William
Baker, Christopher
Gil-Santos, Eduardo
Senellart, Pascale
Lemaitre, Aristide
Ducci, Sara
Leo, Giuseppe
Favero, Ivan
Title Improved optomechanical disk resonator sitting on a pedestal mechanical shield
Journal name New Journal of Physics   Check publisher's open access policy
ISSN 1367-2630
Publication date 2015-02-04
Year available 2015
Sub-type Article (original research)
DOI 10.1088/1367-2630/17/2/023016
Open Access Status DOI
Volume 17
Start page 023016
End page 023016
Total pages 7
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Collection year 2016
Language eng
Formatted abstract
We experimentally demonstrate the controlled enhancement of the mechanical quality factor Q of gallium arsenide disk optomechanical resonators. Disks vibrating at 1.3 GHz with a mechanical shield integrated in their pedestal show a Q improvement by a factor 10?16. The structure is modeled numerically and different modes of vibration are observed, which shed light on the Q enhancement mechanism. An optimized double-disk geometry is presented that promises Q above the million for a large parameter range.
Keyword Disk resonator
Gallium arsenide
Mechanical shield
Optomechanics
Quality Factor
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Non HERDC
 
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Created: Tue, 24 Nov 2015, 17:06:41 EST by Christopher Baker on behalf of School of Mathematics & Physics