Optomechanical crystals

Matt Eichenfield, Jasper Chan, Ryan M. Camacho, Kerry J. Vahala and Oskar Painter ()
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Matt Eichenfield: Thomas J. Watson Sr Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA
Jasper Chan: Thomas J. Watson Sr Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA
Ryan M. Camacho: Thomas J. Watson Sr Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA
Kerry J. Vahala: Thomas J. Watson Sr Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA
Oskar Painter: Thomas J. Watson Sr Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA

Nature, 2009, vol. 462, issue 7269, 78-82

Abstract: Optomechanical crystals: light and sound controlled In a photonic crystal, periodic variations of the refractive index of the host medium are used to manipulate the properties of light, whereas in a phononic crystal it is the mechanical vibrations that are subject to such control. Now Eichenfield et al. have constructed a silicon-chip-based device incorporating an engineered material combining both properties. In the resulting 'optomechanical crystals', strong coupling between photons and phonons makes it possible to control both light and mechanical vibrations in a small space, resulting in an enhanced light–matter interaction. Possible applications for devices using optomechanical crystals include signal processing in photonics and electronics, or as sensitive detectors of tiny masses (such as biomolecules) with high spatial resolution.

Date: 2009
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DOI: 10.1038/nature08524

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