物理学报Issue(14)：476-481,6.DOI:10.7498/aps.62.147803
紫外脉冲激光退火发次对KDP晶体抗损伤性能的影响*
Effect of raster scan number on damage resistance of KDP crystal irradiated by ultraviolet pulse laser∗
摘要
Abstract
The raster scanning experiments for KDP crystal are carried out in R-on-1 mode at energy density below zero probability damage threshold to investigate the damage resistance capability as a function of pulse number after ultraviolet (UV) laser irradiation by using a tripled Nd:YAG laser. The1-on-1 damage measurements after laser irradiation indicate that the damage resistance of KDP is obviously enhanced and the increment is dependent on scanning number. The optical absorption and photoluminescence spectra show that the evolution of oxygen-vacancy centers in KDP crystal is important to the damage resistance capability. The Raman and infrared spectra show that the polarization distortions of PO4, P−OH and P=O groups induced by UV laser irradiation also contribute to the changes of damage resistance.关键词
激光退火/荧光/拉曼/红外Key words
laser conditioning/fluorescence/Raman spectra/infrared spectra引用本文复制引用
..紫外脉冲激光退火发次对KDP晶体抗损伤性能的影响*[J].物理学报,2013,(14):476-481,6.基金项目
中国工程物理研究院发展基金(批准号:2011B0401065)、国家自然科学基金(批准号:61178018)和教育部博士点基金(批准号:20110185110007)资助的课题.*Project supported by the Science Foundation of China Academy of Engineering Physics (Grant No.2011B0401065), the National Natural Science Foundation of China (Grant No.61178018), and the Ph. D. Funding Support Program of Education Ministry of China (Grant No.20110185110007) （批准号:2011B0401065）
