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Proceedings Paper

Low-loss and high damage-threshold mirror development for gravitational-wave detectors
Author(s): Daisuke Tatsumi; Akitoshi Ueda; Hitoki Yoneda; Kazunari Sato
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Paper Abstract

Low-loss and high damage threshold mirrors are needed for laser interferometer-type gravitational-wave detectors. Collaborative development with Japanese company of SIGMA KOKI CO., LTD., National astronomical observatory of Japan and Institute for Laser Science, University of Electro-Communications was made for this purpose. As a result, high reflectivity mirror of 99.99% for 1064nm has both low-scattering loss of less than 10ppm and high-damage threshold of over 400 J/cm2. Such mirrors can be applied for high finesse cavity of more than 10000 with high laser input power of over 10 Watts. The mirror will offer great benefit for various precise measurements with high power lasers.

Paper Details

Date Published: 4 November 2014
PDF: 7 pages
Proc. SPIE 9237, Laser-Induced Damage in Optical Materials: 2014, 923703 (4 November 2014); doi: 10.1117/12.2064809
Show Author Affiliations
Daisuke Tatsumi, National Astronomical Observatory of Japan (Japan)
Akitoshi Ueda, National Astronomical Observatory of Japan (Japan)
Hitoki Yoneda, The Univ. of Electro-Communications (Japan)
Kazunari Sato, Sigma Koki Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 9237:
Laser-Induced Damage in Optical Materials: 2014
Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; MJ Soileau; Detlev Ristau, Editor(s)

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