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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 4 — Apr. 10, 2005
  • pp: 244–246

Modified porous silica antireflective coatings with laser damage resistance for Ti:sapphire

Qiaoying Jia, Haiyuan Li, Ruijun Liu, Yongxing Tang, and Zhonghong Jiang  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 4, pp. 244-246 (2005)


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Abstract

Porous SiO2 antireflective (AR) coatings are prepared from the colloidal silica solution modified with methyltriethoxysilane (MTES) based on the sol-gel route. The viscosity of modified silica suspensions changes but their stability keeps when MTES is introduced. The refractive indices of modified coatings vary little after bake treatment from 100 to 150 Celsius. The modified silica coatings on Ti:sapphire crystal, owning good homogeneity, display prominent antireflective effect within the laser output waveband (750-850 nm) of Ti:sapphire lasers, with average transmission above 98.6%, and own laser induced damage thresholds (LIDTs) of more than 2.2 J/cm2 at 800 nm with the pulse duration of 300 ps.

© 2005 Chinese Optics Letters

OCIS Codes
(310.1210) Thin films : Antireflection coatings
(310.3840) Thin films : Materials and process characterization

Citation
Qiaoying Jia, Haiyuan Li, Ruijun Liu, Yongxing Tang, and Zhonghong Jiang, "Modified porous silica antireflective coatings with laser damage resistance for Ti:sapphire," Chin. Opt. Lett. 3, 244-246 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-4-244


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