Room temperature gravitational wave bar detector with optomechanical readout
Year: 2003
Authors: Conti L., De Rosa M., Marin F., Taffarello L., Cerdonio M.
Autors Affiliation: INFN, Sezione di Padova and Università di Padova, Padova, Italy; INFN, Sezione di Firenze and Dipartimento di Fisica, Universita` di Firenze, and LENS, Sesto Fiorentino (Firenze), Italy
Abstract: We present the full implementation of a room-temperature gravitational wave bar detector equipped with an optomechanical readout. The bar mechanical vibrations are read by a Fabry-Perot interferometer whose length changes are compared with a stable reference optical cavity by means of a resonant laser. The detector performance is completely characterized in terms of spectral sensitivity and statistical properties of the fluctuations in the system output signal. This kind of readout technique allows for wide-band detection sensitivity and we can accurately test the model of the coupled oscillators for thermal noise. Our results are very promising for cryogenic operation and represent an important step towards significant improvements in the performance of massive gravitational wave detectors. (C) 2003 American Institute of Physics.
Journal/Review: JOURNAL OF APPLIED PHYSICS
Volume: 93 (6) Pages from: 3589 to: 3595
KeyWords: Cryogenics; Detectors; Fabry-Perot interferometers; Lasers; Oscillators (mechanical); Thermal noise; Vibrations (mechanical), Gravitational wave bar detectors, Gravity wavesDOI: 10.1063/1.1544077ImpactFactor: 2.171Citations: 29data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-06References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here