Harnessing optical forces in integrated photonic circuits

Mo Li, W. H. P. Pernice, C. Xiong, T. Baehr-Jones, M. Hochberg and H. X. Tang ()
Additional contact information
Mo Li: Department of Electrical Engineering,
W. H. P. Pernice: Department of Electrical Engineering,
C. Xiong: Department of Electrical Engineering,
T. Baehr-Jones: University of Washington, Seattle, Washington 98195, USA
M. Hochberg: University of Washington, Seattle, Washington 98195, USA
H. X. Tang: Department of Electrical Engineering,

Nature, 2008, vol. 456, issue 7221, 480-484

Abstract: Photonics: The manipulative power of light Photons exert forces that can be exploited to manipulate matter. An example is the use of optical tweezers in fields such as atom optics and biological physics. Optical forces of this type could be particularly useful for the manipulation of signals in integrated photonic circuits, where light is highly concentrated at the nanometre scale and light–matter interactions are enhanced. A nanomechanical device described in this issue demonstrates this idea in action. The device is a freestanding, vibrating waveguide, driven by a laser diode and its motion can be read-out via evanescent coupling of the light through the waveguide to the dielectric substrate. This work identifies a new optical force that enables all-optical operation of nanomechanical systems on a platform compatible with the CMOS technology of conventional integrated circuits.

Date: 2008
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DOI: 10.1038/nature07545

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