Improving the sensitivity of FM spectroscopy using nano-mechanical cantilevers

Details Improving the sensitivity of FM spectroscopy using nano-mechanical cantilevers Improving the sensitivity of FM spectroscopy using nano-mechanical cantilevers

2004-05-24

arxiv.org/abs/quant-ph/0405144v1

Physics

Quantum Physics

5 pages, 1 figure

Scientific paper

10.1063/1.1809275

It is suggested that nano-mechanical cantilevers can be employed as high-Q filters to circumvent laser noise limitations on the sensitivity of frequency modulation spectroscopy. In this approach a cantilever is actuated by the radiation pressure of the amplitude modulated light that emerges from an absorber. Numerical estimates indicate that laser intensity noise will not prevent a cantilever from operating in the thermal noise limit, where the high Q's of cantilevers are most advantageous.

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