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Self-induced oscillations in an optomechanical system driven by bolometric backaction

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PhysRevLett.101.133903.pdf
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2008_Self-induced.png
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Citation

Metzger, C., Ludwig, M., Neuenhahn, C., Ortlieb, A., Favero, I., Karrai, K., et al. (2008). Self-induced oscillations in an optomechanical system driven by bolometric backaction. Physical Review Letters, 101(13): 133903. doi:10.1103/PhysRevLett.101.133903.


Cite as: https://hdl.handle.net/21.11116/0000-0001-D8B6-E
Abstract
We have explored the nonlinear dynamics of an optomechanical system consisting of an illuminated Fabry-Perot cavity, one of whose end mirrors is attached to a vibrating cantilever. The backaction induced by the bolometric light force produces negative damping such that the system enters a regime of nonlinear oscillations. We study the ensuing attractor diagram describing the nonlinear dynamics. A theory is presented that yields quantitative agreement with experimental results. This includes the observation of a regime where two mechanical modes of the cantilever are excited simultaneously.