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Stable, mode-matched, medium-finesse optical cavity incorporating a microcantilever mirror

J. G. E. Harris·B. M. Zwickl·A. M. Jayich
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Abstract

A stable optical resonator has been built using a 30 micrometer-wide, metal-coated microcantilever as one mirror. The second mirror was a 12.7 mm-diameter concave dielectric mirror. By positioning the two mirrors 75 mm apart in a near-hemispherical configuration, a Fabry-Perot cavity with a finesse equal to 55 was achieved. The finesse was limited by the optical loss in the cantilever's metal coating; diffraction losses from the small mirror were negligible. The cavity achieved passive laser cooling of the cantilever's Brownian motion.

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J. G. E. Harris, B. M. Zwickl, A. M. Jayich. 2006-05-16. Stable, mode-matched, medium-finesse optical cavity incorporating a microcantilever mirror. https://arxiv.org/abs/physics/0605141

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