Optomechanical intermodulation noise
ORAL
Abstract
We experimentally investigate the thermal noise properties of a room-temperature, membrane-in-the-middle optomechanical cavity in the regime of nominal quantum cooperativity approaching one. We show that with resonant laser drive, the intra-cavity amplitude noise is dominated by thermal noise up-converted by nonlinear cavity transduction of the laser-cavity detuning. This noise conversion process sets a limitation on the observability of quantum features of the optomechanical interaction, which is not specific to membrane in the middle setups.
*This work was supported by the Swiss National Science Foundation under grant no. 182103 and the Defense Advanced Research Projects Agency (DARPA), Defense Sciences Office (DSO), under contract no. D19AP00016 (QUORT). A.B. acknowledges support from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement no. 722923 (OMT). N.J.E. acknowledges support from the Swiss National Science Foundation under grant no. 185870 (Ambizione)
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Presenters
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Nils Johan Engelsen
- Ecole Polytechnique Federale de Lausanne