Spectral narrowing of parametrically pumped thermomechanical noise
Abstract
We derive the displacement noise spectrum of a parametrically pumped resonator below the onset for self-excited oscillations. We extend the fluctuation-dissipation response of a thermomechanical-noise-driven resonator to the case of degenerate parametric pumping as a function of pump magnitude and frequency while properly accounting for the quadrature-dependence of the parametric thermal noise squeezing. We use measurements with a microelectromechanical cantilever to corroborate our model.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 20, 2020
- Source ID
- 10.1063/5.0009848
Entities
People
- Dongsuk D. Shin
- Hyun-Keun Kwon
- James M. L. Miller
- Steven W. Shaw
- Thomas W. Kenny
Organizations
- Defense Advanced Research Projects Agency
- Florida Institute of Technology
- Michigan State University
- National Science Foundation
- Stanford University