Anomalous dynamic backaction in interferometers

Autor: Roman Schnabel, Klemens Hammerer, Henning Kaufer, S. P. Tarabrin, Farid Ya. Khalili
Rok vydání: 2013
Předmět:
Zdroj: Physical Review A. 88
ISSN: 1094-1622
1050-2947
Popis: We analyze the dynamic optomechanical back-action in signal-recycled Michelson and Michelson-Sagnac interferometers that are operated off dark port. We show that in this case --- and in contrast to the well-studied canonical form of dynamic back-action on dark port --- optical damping in a Michelson-Sagnac interferometer acquires a non-zero value on cavity resonance, and additional stability/instability regions on either side of the resonance, revealing new regimes of cooling/heating of micromechanical oscillators. In a free-mass Michelson interferometer for a certain region of parameters we predict a stable single-carrier optical spring (positive spring and positive damping), which can be utilized for the reduction of quantum noise in future-generation gravitational-wave detectors.
9 pages, 5 figures. Paper reorganized
Databáze: OpenAIRE