Designing evanescent optical interactions to control the expression of Casimir forces in optomechanical structures
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Johnson_Designing evanescent.pdf
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Author(s)
Rodriguez-Wong, Alejandro
Woolf, David
Hui, Pui-Chuen
Iwase, Eiji
McCauley, Alexander Patrick
Capasso, Federico
Loncar, Marko
Johnson, Steven G.
Date Issued
May 2011
Journal
Applied Physics Letters
Publisher
American Institute of Physics
Citation
Rodriguez, Alejandro W. et al. “Designing Evanescent Optical Interactions to Control the Expression of Casimir Forces in Optomechanical Structures.” Applied Physics Letters 98.19 (2011): 194105. Web.© 2011 American Institute of Physics.
Version
Final published version
Abstract
We propose an optomechanical structure consisting of a photonic-crystal (holey) membrane suspended above a layered silicon-on-insulator substrate in which resonant bonding/antibonding optical forces created by externally incident light from above enable all-optical control and actuation of stiction effects induced by the Casimir force. In this way, one can control how the Casimir force is expressed in the mechanical dynamics of the membrane, not by changing the Casimir force directly but by optically modifying the geometry and counteracting the mechanical spring constant to bring the system in or out of regimes where Casimir physics dominate. The same optical response (reflection spectrum) of the membrane to the incident light can be exploited to accurately measure the effects of the Casimir force on the equilibrium separation of the membrane.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1063/1.3589119
