DEVELOPMENT OF LOW-LOSS SAPPHIRE MIRRORS

Authors
BLAIR DG NOTCUTT M TAYLOR CT WONG EK WALSH C LEISTNER A SECKOLD J MACKOWSKI JM GANAU P MICHEL C PINARD L
Citation
Dg. Blair et al., DEVELOPMENT OF LOW-LOSS SAPPHIRE MIRRORS, Applied optics, 36(1), 1997, pp. 337-341
Citations number
8
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
36
Issue
1
Year of publication
1997
Pages
337 - 341
Database
ISI
SICI code
0003-6935(1997)36:1<337:DOLSM>2.0.ZU;2-H
Abstract
We report on the successful development of low-loss sapphire mirrors f or use at a 1-mu m wavelength. Methods for polishing and coating are d escribed. The analysis of each process shows a roughness of better tha n 0.1 nm, a coating scattering of 1 ppm, and a surface scattering of 1 3 ppm. The mirrors have been characterized in a Fabry-Perot cavity, ha ving a finesse of 100,000. Mode doublets result from the birefringence of the coatings. (C) 1997 Optical Society of America