Analysis of radiation-pressure induced mechanical oscillation of an optical microcavity

T. J. Kippenberg*, H. Rokhsari, T. Carmon, A. Scherer, K. J. Vahala

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The theoretical work of Braginsky predicted that radiation pressure can couple the mechanical, mirror eigenmodes of a Fabry-Pérot resonator to its optical modes, leading to a parametric oscillation instability. This regime is characterized by regenerative mechanical oscillation of the mechanical mirror eigenmodes. We have recently observed the excitation of mechanical modes in an ultrahigh Q optical microcavity. Here, we present a detailed experimental analysis of this effect and demonstrate that radiation pressure is the excitation mechanism of the observed mechanical oscillations.

Original languageEnglish
Article number033901
JournalPhysical Review Letters
Issue number3
StatePublished - 15 Jul 2005
Externally publishedYes


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