Actuation of micro-optomechanical systems via cavity-enhanced optical dipole forces

By M. Eichenfield, C. P. Michael, R. Perahia, Oskar J. Painter. 2007

219 citations recorded by the source corpus.

Optical forces can produce significant mechanical effects in micro- and nanophotonic systems. Here we demonstrate a novel optomechanical system using a movable, micrometre-scale waveguide evanescently coupled to a high-Q optical microresonator. Micrometre-scale displacements of the waveguide are observed for milliwatt-level optical input powers. Measurement of the spatial variation of the force on the waveguide indicates that it arises from a cavity-enhanced optical dipole force resulting from the stored optical field of the resonator. This force is used to realize an all-optical tunable filter operating with submilliwatt control power. A theoretical model of the system shows that the maximum achievable force is independent of the intrinsic Q of the optical resonator and scales inversely with the cavity mode volume, suggesting that such forces may become even more effective as devices approach the nanoscale.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/e44aa827947272d83b7c44dbf79f3716d88c77ba

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

Trapping, corralling and spectral bonding of optical resonances through optically induced potentials (2007, background): “, and recent experiments have shed light on the experimental utility of such forces for future integrated photonic system”
Giant enhancement of stimulated Brillouin scattering in the sub-wavelength limit (2012, background): “[26] M.”
Ultralow dissipation optomechanical resonators on a chip (2008, background): “Regarding the wider implications of our work, the studied aspects of geometry-dependent mechanical dissipation by means of mode coupling (which is also important for nanomechanical beam resonators) and the demonstrated quantification of clamping losses can be of broad interest and could directly be ”