摘要
研究了不同退火温度下磷酸二氢钾(KDP)晶体的透过光谱和损伤阈值的变化。发现热退火对晶体的透过光谱没有影响,退火温度分别为140℃和160℃时晶体的损伤阈值没有明显变化。但是在150℃下,晶体的损伤阈值提高了约1.4倍。实验证明150℃下的热退火对提高晶体的损伤阈值效果最好。
Potassium dihydrogen phosphate（KDP） crystals were baked at different temperatures in the same procedure.Samples from similar locations of as-grown 500-mm-class KDP crystals were used to measure the transmission spectra and laser damage thresholds.The results prove that the transmission spectra are not affected by thermal conditioning,and the laser damage thresholds of samples after annealing at 140 ℃and 160 ℃ are not significantly different from that of the unconditioned sample.However,for samples annealing at 150 ℃ a 1.4 times increase in the laser damage threshold is observed at 1ω,indicating that the annealing temperature of 150 ℃ is the best for elevating the laser damage threshold of KDP crystals.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2012年第5期1089-1092,共4页
High Power Laser and Particle Beams
基金
National Natural Science Foundation of China(60978027,61178060)
Program for New Century Excellent Talents in University(NCET-10-0526)
Natural Science Foundation of Shandong Province(2009ZRB01907,ZR2010EM001)
Doctoral Program Foundation of Institutions of Higher Education of China(20090131120035)
关键词
KDP晶体
热退火
透过光谱
激光损伤阈值
KDP crystal
thermal conditioning
transmission spectra
laser damage threshold
