Hui, Pui-ChuenWoolf, DavidIwase, EijiSohn, Young-IkRamos, DanielKhan, MugheesRodriguez, Alejandro W.Johnson, Steven G.Capasso, FedericoLoncar, Marko2019-09-172013Hui, 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/10.1063/1.4813121.0003-69511077-31181520-8842http://nrs.harvard.edu/urn-3:HUL.InstRepos:41371496We 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.en-USJournal Article2019-09-1710.1063/1.4813121