Designing evanescent optical interactions to control the expression of Casimir forces in optomechanical structures

Alejandro W. Rodriguez, David Woolf, Pui Chuen Hui, Eiji Iwase, Alexander P. McCauley, Federico Capasso, Marko Loncar, Steven G. Johnson

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We propose an optomechanical structure consisting of a photonic-crystal (holey) membrane suspended above a layered silicon-on-insulator substrate in which resonant bonding/antibonding optical forces created by externally incident light from above enable all-optical control and actuation of stiction effects induced by the Casimir force. In this way, one can control how the Casimir force is expressed in the mechanical dynamics of the membrane, not by changing the Casimir force directly but by optically modifying the geometry and counteracting the mechanical spring constant to bring the system in or out of regimes where Casimir physics dominate. The same optical response (reflection spectrum) of the membrane to the incident light can be exploited to accurately measure the effects of the Casimir force on the equilibrium separation of the membrane.

Original languageEnglish
Article number194105
JournalApplied Physics Letters
Volume98
Issue number19
DOIs
Publication statusPublished - 2011 May 9
Externally publishedYes

Fingerprint

membranes
interactions
stiction
optical control
actuation
insulators
photonics
physics
silicon
geometry
crystals

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Designing evanescent optical interactions to control the expression of Casimir forces in optomechanical structures. / Rodriguez, Alejandro W.; Woolf, David; Hui, Pui Chuen; Iwase, Eiji; McCauley, Alexander P.; Capasso, Federico; Loncar, Marko; Johnson, Steven G.

In: Applied Physics Letters, Vol. 98, No. 19, 194105, 09.05.2011.

Research output: Contribution to journalArticle

Rodriguez, AW, Woolf, D, Hui, PC, Iwase, E, McCauley, AP, Capasso, F, Loncar, M & Johnson, SG 2011, 'Designing evanescent optical interactions to control the expression of Casimir forces in optomechanical structures', Applied Physics Letters, vol. 98, no. 19, 194105. https://doi.org/10.1063/1.3589119
Rodriguez, Alejandro W. ; Woolf, David ; Hui, Pui Chuen ; Iwase, Eiji ; McCauley, Alexander P. ; Capasso, Federico ; Loncar, Marko ; Johnson, Steven G. / Designing evanescent optical interactions to control the expression of Casimir forces in optomechanical structures. In: Applied Physics Letters. 2011 ; Vol. 98, No. 19.
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