Photothermal optomechanics in superfluid helium coupled to a fiber-based cavity
arXiv:1609.07025 · doi:10.1088/2040-8986/aa551e
Abstract
Presented in this paper are measurements of an optomechanical device in which various acoustic modes of a sample of superfluid helium couple to a fiber-based optical cavity. In contrast with recent work on the paraxial acoustic mode confined by the cavity mirrors, we focus specifically on the acoustic modes associated with the helium surrounding the cavity. This paper provides a framework for understanding how the acoustic modes depend on device geometry. The acoustic modes are observed using the technique of optomechanically induced transparency/amplification. The optomechanical coupling to these modes is found to be predominantly photothermal.
arXiv comment13 pages, 8 figures
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- Quantum optomechanics in a liquid
- Nonlinear dynamics of weakly dissipative optomechanical systems
- Direct laser-written optomechanical membranes in fiber Fabry-Perot cavities
- Bidirectional microwave-optical transduction based on integration of high-overtone bulk acoustic resonators and photonic circuits
- Dueling Dynamical Backaction in a Cryogenic Optomechanical Cavity
- Optimized single-shot laser ablation of concave mirror templates on optical fibers
- A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K
- Proposal for a quantum traveling Brillouin resonator
- Electromechanical feedback control of nanoscale superflow
- A cryogenic chamber setup for superfluid helium experiments with optical fiber and electrical access