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波长为2.94μm激光束对腔膜的损伤 被引量:4

The damage of dielectric mirrors from 2. 94 μm laser beams in YAG: Er^(3+) crystal
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摘要 本文对 YAG:Er^(3+)的2.94μm 激光介质膜的损伤进行了研究,对不同基片和不同膜层材料进行实验,认为损伤的主要原因是2.94μm 波段对水吸收太大(α_吸=8000cm^(-1))造成的。改进办法采用 Al_2O_3作基片,并加保护层。 The damages of the dielectric mirrors from 2.94μm laser beams in YAG:Er^(3+) crystal wave investigated.The test results of dif- ferent basis plate and coatings materials show that the damage is cause- sed by the large absorption of“OH”at 2.94μm wavelength (α=8000 cm^(-1).So,it is important to select statable materials and coat water- proof protection film.
出处 《激光技术》 CAS CSCD 1991年第6期382-384,共3页 Laser Technology
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