High-Q optomechanical GaAs nanomembranes

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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We demonstrate that suspended single-crystal GaAs nanomembranes exhibit mechanical Q-factors exceeding 2 × 106 at room temperature, which makes them a very promising platform for optomechanics. Because of the completely removed substrate and their millimeter-scale lateral size, the membranes can be incorporated in macroscopic optical cavities for quantum optomechanics experiments. We have measured the mechanical mode spectrum and spatial profiles and find good agreements with theory. Our work paves the way for optomechanical experiments with direct band gap semiconductors in which not only radiation pressure but also other mechanisms involving embedded light emitters could be exploited for quantum optical control of massive mechanical systems. © 2011 American Institute of Physics.
Original languageEnglish
JournalApplied Physics Letters
Publication date2011
Volume99
Issue24
Pages243102
ISSN0003-6951
DOIs
StatePublished

Bibliographical note

Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters / Volume 99 / Issue 24 and may be found at http://apl.aip.org/resource/1/applab/v99/i24/p243102_s1.

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