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Analysis of 1omega bulk laser damage in KDP

机译：KDP中1omega大块激光损坏的分析

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摘要

The influence of laser parameters on laser-induced damage in the bulk of KDP is difficult to determine because the damage manifests as discrete sites a few micrometers in diameter distributed throughout a relatively large volume of material. Here, we present a method to directly measure the size and location of many thousands of such sites and correlate them to the laser conditions that produced them. This technique is used to characterize the effects of pulse duration on damage initiated by 1053 nm light in the bulk of KDP crystals. We find that the density of damage sites produced by 1053 nm light is less sensitive to pulse duration than was previously reported for 526 nm and 351 nm light. In addition, the effect of pulse duration on the size of the damage sites produced appears insensitive to wavelength.
机译：激光参数对KDP主体中激光引起的损伤的影响难以确定，因为损伤表现为直径相对较大的材料分布在直径为几微米的离散位置。在这里，我们提出了一种直接测量成千上万个此类部位的大小和位置并将它们与产生它们的激光条件相关联的方法。该技术用于表征脉冲持续时间对KDP晶体中1053 nm光引发的损伤的影响。我们发现，与先前报道的526 nm和351 nm的光相比，由1053 nm的光产生的损伤部位的密度对脉冲持续时间的敏感性较低。另外，脉冲持续时间对产生的损伤部位的大小的影响似乎对波长不敏感。

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