Ultrahigh Q-frequency product for optomechanical disk resonators with a mechanical shield

Nguyen, D. T., Baker, C., Hease, W., Sejil, S., Senellart, P., Lemaitre, A., Ducci, S., Leo, G. and Favero, I. (2013) Ultrahigh Q-frequency product for optomechanical disk resonators with a mechanical shield. Applied Physics Letters, 103 24: . doi:10.1063/1.4846515

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Author Nguyen, D. T.
Baker, C.
Hease, W.
Sejil, S.
Senellart, P.
Lemaitre, A.
Ducci, S.
Leo, G.
Favero, I.
Title Ultrahigh Q-frequency product for optomechanical disk resonators with a mechanical shield
Journal name Applied Physics Letters   Check publisher's open access policy
ISSN 0003-6951
1077-3118
Publication date 2013-12-09
Year available 2013
Sub-type Article (original research)
DOI 10.1063/1.4846515
Open Access Status File (Publisher version)
Volume 103
Issue 24
Total pages 6
Place of publication Melville, NY, United States
Publisher A I P Publishing LLC
Language eng
Subject 3101 Physics and Astronomy (miscellaneous)
Abstract We report on optomechanical GaAs disk resonators with ultrahigh quality factor-frequency product Q × f. Disks standing on a simple pedestal exhibit GHz mechanical breathing modes attaining a Q × f of 10 13 measured under vacuum at cryogenic temperature. Clamping losses are found to be the dominant source of dissipation. An improved disk resonator geometry integrating a shield within the pedestal is then proposed, and its working principles and performances are investigated by numerical simulations. For dimensions compatible with fabrication constraints, the clamping-loss- limited Q reaches 107-109 corresponding to Q × f equals 1016-1018. This shielded pedestal approach applies to any heterostructure presenting an acoustic mismatch.
Keyword Physics, Applied
Physics
PHYSICS, APPLIED
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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