Thermal lensing in cryogenic sapphire substrates

Details Thermal lensing in cryogenic sapphire substrates Thermal lensing in cryogenic sapphire substrates

2002-02-12

arxiv.org/abs/gr-qc/0202038v1

Class.Quant.Grav. 19 (2002) 2045

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, 3 figures, Proceedings of 4th Edoaldo Amaldi Conference of Gravitational Waves, 8 - 13 July 2001, The University of W

Scientific paper

10.1088/0264-9381/19/7/412

We report the reduction of the thermal lensing in cryogenic sapphire mirrors, which is planed to be used in the Large scale Cryogenic Gravitational wave Telescope (LCGT) project. We measured three key parameters of sapphire substrate for thermal lensing at cryogenic temperature. They are optical absorption coefficient, thermal conductivity and temperature coefficient of refractive index at cryogenic temperature. On basis of these measurements, we estimated the shot noise sensitivity of the interferometer with thermal lensing by using a wave-front tracing simulation. We found that thermal lensing in cryogenic sapphire mirrors is negligible.

Affiliated with

Also associated with

No associations

Rating

Thermal lensing in cryogenic sapphire substrates 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 Thermal lensing in cryogenic sapphire substrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal lensing in cryogenic sapphire substrates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-620730