High frequency GaAs nano-optomechanical disk resonator

Ding, Lu, Baker, Christophe, Senellart, Pascale, Lemaitre, Aristide, Ducci, Sara, Leo, Giuseppe and Favero, Ivan (2010) High frequency GaAs nano-optomechanical disk resonator. Physical Review Letters, 105 26: . doi:10.1103/PhysRevLett.105.263903

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Author Ding, Lu
Baker, Christophe
Senellart, Pascale
Lemaitre, Aristide
Ducci, Sara
Leo, Giuseppe
Favero, Ivan
Title High frequency GaAs nano-optomechanical disk resonator
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
1079-7114
Publication date 2010-12-23
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.105.263903
Open Access Status File (Publisher version)
Volume 105
Issue 26
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract Optomechanical coupling between a mechanical oscillator and light trapped in a cavity increases when the coupling takes place in a reduced volume. Here we demonstrate a GaAs semiconductor optomechanical disk system where both optical and mechanical energy can be confined in a subwavelength scale interaction volume. We observe a giant optomechanical coupling rate up to 100GHz/nm involving picogram mass mechanical modes with a frequency between 100 MHz and 1 GHz. The mechanical modes are singled-out measuring their dispersion as a function of disk geometry. Their Brownian motion is optically resolved with a sensitivity of 10-17m/√Hz at room temperature and pressure, approaching the quantum limit imprecision.
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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