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.
|Title of host publication
|International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Proceedings
|IEEE Computer Society
|Published - 4 Sep 2018
|23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Lausanne, Switzerland
Duration: 29 Jul 2018 → 2 Aug 2018
|International Conference on Optical MEMS and Nanophotonics
|23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018
|29/07/18 → 2/08/18
Bibliographical notePublisher Copyright:
© 2018 IEEE.
- Cavity Optomechanics
- Sideband Asymmetry
- Sideband Cooling