Optical bistability with a repulsive optical force in coupled silicon photonic crystal membranes
Author(s)Hui, Pui-Chuen; Woolf, David; Iwase, Eiji; Sohn, Young-Ik; Ramos, Daniel; Khan, Mughees; Rodriguez, Alejandro W.; Johnson, Steven G.; Capasso, Federico; Loncar, Marko; ... Show more Show less
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We 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 ≈ 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.
DepartmentMassachusetts Institute of Technology. Department of Mathematics
Applied Physics Letters
American Institute of Physics (AIP)
Hui, Pui-Chuen, David Woolf, Eiji Iwase, Young-Ik Sohn, Daniel Ramos, Mughees Khan, Alejandro W. Rodriguez, Steven G. Johnson, Federico Capasso, and Marko Loncar. “Optical bistability with a repulsive optical force in coupled silicon photonic crystal membranes.” Applied Physics Letters 103, no. 2 (2013): 021102.
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