Laser-Induced Damage in Optical Materials
Laser-Induced Damage in Optical Materials
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DOI：
10.21236/ad0760131
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发表时间：
1973
期刊：
影响因子：
--
通讯作者：
C. Giuliano
中科院分区：
文献类型：
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作者：
C. Giuliano
摘要：本报告包含了在0。694和1.06微米使用良好控制红宝石和Nd:YAG激光器。在1.06微米处研究的材料是普鲁斯特石（Ag3AsS3）和铌酸锂（LiNbO3）。普鲁斯特的研究一直致力于通过采用不同的抛光技术来改善表面质量。与先前测量的阈值相比，几乎没有改善。利用电子激发x射线微探针测量，证明了普鲁斯特石损伤部位的化学变化。对LiNbO3进行了初步的离子束抛光实验，但没有观察到损伤阈值的改善。然而，在目前所研究的样品中，这种材料的损伤似乎是有限的。研究了激光脉冲在表面损伤阈值以上和以下的传输、反射和后向散射脉冲的时空特性。
Abstract : The report contains the results of damage experiments performed at 0. 694 and 1.06 micrometer using well controlled ruby and Nd:YAG lasers. Materials studied at 1.06 micrometer are proustite (Ag3AsS3) and lithium niobate (LiNbO3). Proustite studies have been directed toward improving surface quality by employing different polishing techniques. Little or no improvement has been obtained over previously measured thresholds. Chemical changes in proustite damage sites are evidenced by the use of electron excited x-ray microprobe measurements. Preliminary ion beam polishing experiments were performed on LiNbO3, but no improvement in damage threshold was observed. However, the damage in this material appears to be inclusion limited in the samples studied so far. The temporal and spatial characteristics of laser pulses were studied for transmitted, reflected, and backscattered pulses both above and below surface damage threshold.