Optical bistability with a repulsive optical force in coupled silicon photonic crystal membranes
Rodriguez, Alejandro W.
Johnson, Steven G.
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CitationHui, Pui-Chuen, David Woolf, Eiji Iwase, Young-Ik Sohn, Daniel Ramos, Mughees Khan, Alejandro W. Rodriguez, Steven G. Johnson, Federico Capasso, and Marko Loncar. 2013. “Optical Bistability with a Repulsive Optical Force in Coupled Silicon Photonic Crystal Membranes.” Applied Physics Letters 103 (2): 21102. https://doi.org/10.1063/1.4813121.
AbstractWe demonstrate actuation of a silicon photonic crystal membrane with a repulsive optical gradient force. The extent of the static actuation is extracted by examining the optical bistability as a combination of the optomechanical, thermo-optic, and photo-thermo-mechanical effects using coupled-mode theory. Device behavior is dominated by a repulsive optical force which results in displacements of approximate to 1 nm/mW. By employing an extended guided resonance which effectively eliminates multi-photon thermal and electronic nonlinearities, our silicon-based device provides a simple, non-intrusive solution to extending the actuation range of micro-electromechanical devices.
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