红外激光激发透明Cr:YAG陶瓷的宽带白光发射：固相反应烧结制备
Infrared laser stimulated broadband white emission of transparent Cr:YAG ceramics obtained by solid state reaction sintering
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中文总结 AI 辅助
本文研究透明Cr:YAG陶瓷在红外激光激发下的宽带白光发射，发现其强度依赖激发功率和气压，机理为铬混合价态对的间隔电荷转移。
中文摘要 AI 辅助
本文研究了光致白光发射（LIWE）作为透明Cr:YAG陶瓷中激光损耗的来源之一。我们发现，当激发功率超过一定阈值时，透明Cr:YAG陶瓷能够产生明亮的LIWE。LIWE的强度强烈依赖于激发功率和环境气压。根据Cr3+发光估算的基质温度低于600°C，而最强的白光发射出现在50-400°C之间。激光诱导白光发射的机理被归因于铬混合价态对中的间隔电荷转移（IVCT）。
英文摘要
In the present work, the Light Induced White Emission (LIWE) was investigated as one of the sources of laser loss in transparent Cr:YAG ceramics. We have found that transparent Cr:YAG ceramics is capable of generating bright LIWE at excitation powers above a certain threshold. Intensity of LIWE strongly depends on the excitation power and ambient pressure. The host temperature estimated from Cr3+ luminescence was found to be below 600°C, while the most intense white emission was found between 50-400°C. The mechanism of the laser induced white emission was discussed in terms of Intervalence Charge Transfer (IVCT) in chromium mixed valence pair.
发表机构
- Institute of Low Temperature and Structure Research Polish Academy of Science（波兰科学院低温结构研究所）
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