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Opt Express. 2009 Nov 23;17(24):21897-909. doi: 10.1364/OE.17.021897.

Resonance-enhanced optical forces between coupled photonic crystal slabs.

Author information

  • 1Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA.

Abstract

The behaviors of lateral and normal optical forces between coupled photonic crystal slabs are analyzed. We show that the optical force is periodic with displacement, resulting in stable and unstable equilibrium positions. Moreover, the forces are strongly enhanced by guided resonances of the coupled slabs. Such enhancement is particularly prominent near dark states of the system, and the enhancement effect is strongly dependent on the types of guided resonances involved. These structures lead to enhancement of light-induced pressure over larger areas, in a configuration that is directly accessible to externally incident, free-space optical beams.

PMID:
19997434
[PubMed - indexed for MEDLINE]
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