Journal
OPTICS EXPRESS
Volume 17, Issue 24, Pages 21897-21909Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.021897
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Funding
- Stanford Graduate Fellowship
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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. (C) 2009 Optical Society of America
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