Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2012-02-29
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
11 pages, 4 figures, 4 tables
Scientific paper
We propose a simple way to improve the laser gravitational-wave detectors sensitivity by means of reduction of the number of reflective coating layers of the core optics mirrors. This effects in the proportional decrease of the coating thermal noise, the most notorious among the interferometers technical noise sources. The price for this is the increased quantum noise, as well as high requirements for the pump laser power and power at the beamsplitter. However, as far as these processes depend differently on the coating thickness, we demonstrate that a certain trade-off is possible, yielding a 20-30% gain (for diverse gravitational wave signal types and interferometer configurations), providing that feasible values of laser power and power on the beamsplitter are assumed.
Danilishin Stefan L.
Khalili Farid Ya.
Voronchev N. V.
No associations
LandOfFree
Trade-off between quantum and thermal fluctuations in mirror coatings yields improved sensitivity of gravitational-wave interferometers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Trade-off between quantum and thermal fluctuations in mirror coatings yields improved sensitivity of gravitational-wave interferometers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trade-off between quantum and thermal fluctuations in mirror coatings yields improved sensitivity of gravitational-wave interferometers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-524382