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Title: Annealing effect on the optical properties and laser-induced damage resistance of solgel-derived ZrO{sub 2} films

Abstract

By modifying some structural characteristics, the annealing process can have considerable effects on the optical performance of the solgel-derived ZrO{sub 2} xerogel films. Annealing at increasing temperature from 150 deg. C to 750 deg. C gives rise to first an increase of refractive index from 1.63 (at 633 nm) to 1.93 and then a decrease to 1.86 with the watershed temperature of 550 deg. C. This can be associated with the evolutions in both packing density and structure order of the films due to the removal of organic segments, material crystallization, and phase transformation. The optical bandgap is found to decrease from 5.63 to 4.97 eV over the entire temperature range, suggesting an increasing nonlinear absorption in the case of high-power laser irradiation. Moreover, annealing completely destroys the network structure of the xerogel films that is suspected to facilitate the energy relaxation. Thus, the combined effect of the greatly weakened endurance and possible enhanced absorption to irradiation laser leads to a monotonous decrease of the laser-induced damage threshold from 55 to 10 J/cm{sup 2} (at 1053 nm, 10 ns pulse duration, and R/1 testing mode)

Authors:
; ; ; ; ;  [1];  [2];  [3];  [3];  [2]
  1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China) and College of Material Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024 (China) and Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)
  2. (China)
  3. (China) and Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)
Publication Date:
OSTI Identifier:
20929676
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the Optical Society of America. Part B, Optical Physics; Journal Volume: 24; Journal Issue: 5; Other Information: DOI: 10.1364/JOSAB.24.001066; (c) 2007 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; ANNEALING; CRYSTALLIZATION; DAMAGE; ENERGY GAP; EVOLUTION; IRRADIATION; LASER RADIATION; LASERS; NONLINEAR PROBLEMS; PERFORMANCE; REFRACTIVE INDEX; RELAXATION; SOL-GEL PROCESS; TEMPERATURE RANGE 0400-1000 K; THIN FILMS; TIME DEPENDENCE; WATERSHEDS; ZIRCONIUM OXIDES

Citation Formats

Liang Liping, Xu Yao, Zhang Lei, Sheng Yonggang, Wu Dong, Sun Yuhan, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001. Annealing effect on the optical properties and laser-induced damage resistance of solgel-derived ZrO{sub 2} films. United States: N. p., 2007. Web. doi:10.1364/JOSAB.24.001066.
Liang Liping, Xu Yao, Zhang Lei, Sheng Yonggang, Wu Dong, Sun Yuhan, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, & State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001. Annealing effect on the optical properties and laser-induced damage resistance of solgel-derived ZrO{sub 2} films. United States. doi:10.1364/JOSAB.24.001066.
Liang Liping, Xu Yao, Zhang Lei, Sheng Yonggang, Wu Dong, Sun Yuhan, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001. Tue . "Annealing effect on the optical properties and laser-induced damage resistance of solgel-derived ZrO{sub 2} films". United States. doi:10.1364/JOSAB.24.001066.
@article{osti_20929676,
title = {Annealing effect on the optical properties and laser-induced damage resistance of solgel-derived ZrO{sub 2} films},
author = {Liang Liping and Xu Yao and Zhang Lei and Sheng Yonggang and Wu Dong and Sun Yuhan and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001},
abstractNote = {By modifying some structural characteristics, the annealing process can have considerable effects on the optical performance of the solgel-derived ZrO{sub 2} xerogel films. Annealing at increasing temperature from 150 deg. C to 750 deg. C gives rise to first an increase of refractive index from 1.63 (at 633 nm) to 1.93 and then a decrease to 1.86 with the watershed temperature of 550 deg. C. This can be associated with the evolutions in both packing density and structure order of the films due to the removal of organic segments, material crystallization, and phase transformation. The optical bandgap is found to decrease from 5.63 to 4.97 eV over the entire temperature range, suggesting an increasing nonlinear absorption in the case of high-power laser irradiation. Moreover, annealing completely destroys the network structure of the xerogel films that is suspected to facilitate the energy relaxation. Thus, the combined effect of the greatly weakened endurance and possible enhanced absorption to irradiation laser leads to a monotonous decrease of the laser-induced damage threshold from 55 to 10 J/cm{sup 2} (at 1053 nm, 10 ns pulse duration, and R/1 testing mode)},
doi = {10.1364/JOSAB.24.001066},
journal = {Journal of the Optical Society of America. Part B, Optical Physics},
number = 5,
volume = 24,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}
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