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Proceedings Paper

GaAs micro-nanodisks probed by a looped fiber taper for optomechanics applications
Author(s): L. Ding; P. Senellart; A. Lemaitre; S. Ducci; G. Leo; I. Favero
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Paper Abstract

GaAs micro-nanodisks (typical disk size 5 μm × 200 nm in our work) are good candidates for boosting optomechanical phenomena thanks to their ability to confine both optical and mechanical energy in a sub-micron interaction volume. We present results of optomechanical characterization of GaAs disks by near-field optical coupling from a tapered silica nano-waveguide. Whispering gallery modes with optical Q factor up to a few 105 are observed. Critical coupling, optical resonance doublet splitting and mode identification are discussed. We eventually show an optomechanical phenomenon of optical force attraction of the silica taper to the disk. This phenomenon shows that mechanical and optical degrees of freedom naturally couple at the micro-nanoscale.

Paper Details

Date Published: 11 May 2010
PDF: 8 pages
Proc. SPIE 7712, Nanophotonics III, 771211 (11 May 2010); doi: 10.1117/12.853985
Show Author Affiliations
L. Ding, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris Diderot (France)
P. Senellart, Lab. de Photonique et de Nanostructures (France)
A. Lemaitre, Lab. de Photonique et de Nanostructures (France)
S. Ducci, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris Diderot (France)
G. Leo, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris Diderot (France)
I. Favero, Lab. Matériaux et Phénomènes Quantiques, CNRS, Univ. Paris Diderot (France)


Published in SPIE Proceedings Vol. 7712:
Nanophotonics III
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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