High-Q optomechanical GaAs nanomembranes

Jin Liu, K. Usami, A. Naesby, T. Bagci, E.S. Polzik, P. Lodahl, S. Stobbe

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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
    Issue number24
    Pages (from-to)243102
    Publication statusPublished - 2011

    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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