Quantum Motional Sideband Asymmetry in the Presence of Kerr-type Nonlinearities

Sideband asymmetry between the Stokes and anti-Stokes scattering is a signature of the mechanical oscillators in the quantum regime. It has been demonstrated in several optomechanical systems, as a self-calibrated thermometry method. We present motional sideband asymmetry. measurements of a nano-optomechanical system sideband-cooled close to the ground state, probing simultaneously with red- and blue-detuned tones. Due to a Kerr-type nonlinear cavity response, the measurement can exhibit an artificially increased motional sideband asymmetry. We develop a theoretical model based on Floquet theory that accurately describes our observations. This has wide-ranging implications for schemes utilizing multiple probing or pumping tones.


Published in:
2018 International Conference On Optical Mems And Nanophotonics (Omn), 22-23
Presented at:
International Conference on Optical MEMS and Nanophotonics (OMN), Lausanne, SWITZERLAND, Jul 29-Aug 02, 2018
Year:
Jan 01 2018
Publisher:
New York, IEEE
ISSN:
2160-5033
ISBN:
978-1-5090-6374-1
Keywords:
Laboratories:




 Record created 2019-01-23, last modified 2019-02-24


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