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Published July 11, 2005 | public
Journal Article Open

Radiation-pressure-driven micro-mechanical oscillator


As Q factor is boosted in microscale optical resonant systems there will be a natural tendency for these systems to experience a radiation-pressure induced instability. The instability is manifested as a regenerative oscillation (at radio frequencies) of the mechanical modes of the microcavity. The first observation of this radiation-pressure-induced instability is reported here. Embodied within a microscale, chip-based device reported here this mechanism can benefit both research into macroscale quantum mechanical phenomena [1] and improve the understanding of the mechanism within the context of LIGO [2]. It also suggests that new technologies are possible which will leverage the phenomenon within photonics.

Additional Information

Copyright © 2005 Optical Society of America. Received 10 May 2005; revised 23 June 2005; accepted 24 June 2005. This work was supported by DARPA, NSF and the Caltech Lee Center. H.R. acknowledges Denis Armani for his generous help and T.J.K. acknowledges a postdoctoral fellowship from the CPI.


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