Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Loss factors of mirrors for a gravitational wave antenna

Not Accessible

Your library or personal account may give you access

Abstract

Low-loss mirrors fabricated by ion-beam-sputtering machines for possible application in an interferometric gravitational wave antenna were evaluated by use of Nd:YAG laser light (λ = 1064 nm) with two distinct measurements: a tabletop experiment that used a short cavity with a small beam with a beam waist of approximately 2w 0 = 0.82 mm, and an optical test that used a 20-m prototypical gravitational-wave detector with a large beam with a beam waist of approximately 2w 0 = 4.4 mm. A multilayer coating comprised 29 layers of SiO2/Ta2O5 and one protective coating of SiO2. The best values obtained as a result of these measurements were 16 ppm (parts in 106) and 30 ppm in total loss, respectively. Also, a two-dimensional loss map generated by use of a small beam successfully revealed the existence of a loss structure within the coating surface. These results imply that a high-reflectance multilayer coating has some inhomogeneities and a loss distribution with a typical scale of a few millimeters and that the total measured losses depend on the beam spot size.

© 1999 Optical Society of America

Full Article  |  PDF Article
More Like This
Evaluation of the performance of polished mirror surfaces for the TAMA gravitational wave detector by use of a wave-front tracing simulation

Takayuki Tomaru, Shinji Miyoki, Masatake Ohashi, Kazuaki Kuroda, Takashi Uchiyama, Toshikazu Suzuki, Akira Yamamoto, Takakazu Shintomi, Akitoshi Ueda, Daisuke Tatsumi, Shuichi Sato, Koji Arai, Masaki Ando, Koji Watanabe, Kenji Nakamura, Masahiko Watanabe, Kazuhiko Ito, Izumi Kataoka, Hiroaki Yamamoto, Brett Bochner, and Yaron Hefetz
Appl. Opt. 41(28) 5913-5920 (2002)

High-gain power recycling of a Fabry–Perot Michelson interferometer for a gravitational-wave antenna

Shuichi Sato, Masatake Ohashi, Masa-Katsu Fujimoto, Mitsuhiro Fukushima, Koichi Waseda, Shinji Miyoki, Nergis Mavalvala, and Hiroaki Yamamoto
Appl. Opt. 39(25) 4616-4620 (2000)

Mirrors used in the LIGO interferometers for first detection of gravitational waves

L. Pinard, C. Michel, B. Sassolas, L. Balzarini, J. Degallaix, V. Dolique, R. Flaminio, D. Forest, M. Granata, B. Lagrange, N. Straniero, J. Teillon, and G. Cagnoli
Appl. Opt. 56(4) C11-C15 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved