Optical bistability with a repulsive optical force in coupled silicon photonic crystal membranes

Pui Chuen Hui, David Woolf, Eiji Iwase, Young Ik Sohn, Daniel Ramos, Mughees Khan, Alejandro W. Rodriguez, Steven G. Johnson, Federico Capasso, Marko Loncar

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number021102
JournalApplied Physics Letters
Volume103
Issue number2
DOIs
Publication statusPublished - 2013 Jul 8

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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