连续激光辐照ZnSe/MgF2/K9滤光片的透射特性研究

袁永华; 刘颂豪; 孙承纬; 范正修; 廖常俊; 赵元安

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连续激光辐照ZnSe/MgF2/K9滤光片的透射特性研究

1.
中国工程物理研究院流体物理研究所, 四川绵阳 621 900;
2.
华南师范大学量子电子学研究所, 广东广州 51 0631 ;
3.
中国科学院上海光学精密机械研究所, 上海 201 800

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出版历程
- 刊出日期: 2003-04-15

CW laserinduced transmission change in ZnSe/MgF2/K9 filter

1.
Institute of Fluid Physics,CAEP,Mianyang 621900,China;
2.
Institute of Quantum Electronics,South China Normal University,Guangzhou 510631,China;
3.
Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

摘要

摘要: 分析了连续激光辐照ZnSe/MgF2/K9滤光片引起透射特性的变化。在室温条件下，用波长0.632 8μm激光作为探测光束，测量了1.06μm连续激光辐照ZnSe/MgF2/K9滤光片温升引起薄膜折射率的改变，导致探测光束通过干涉滤光片后透过率的热致非线性变化。在光斑直径0.75mm条件下，测量了不同功率激光辐照ZnSe/MgF2/K9滤光片引起温升随时间的变化。在激光功率30W，辐照时间2.52s条件下，实验观测到ZnSe/MgF2/K9滤光片薄膜破坏温度约为90℃，辐照时间10s时干涉滤光片形成的薄膜龟裂形貌。
- 连续激光 /
- 干涉滤光片 /
- 折射率 /
- 透过率 /
- 薄膜破坏
Abstract: The transmission change of ZnSe/MgF2/K9 filter induced by CW laser(1.06μm) is analyzed in this paper. At room temperature, the change of the film ' s refractive index induced by heating is measured with the detecting laser beam (0632 8μm). As a result of this change, the filter's transmission varies nonlinearly. When laser beam of different power with the spot diameter 0.75mm irradiated on the ZnSe/MgF2/K9 filter, temperature change responding to irradiation time is measured. Typical experiment results are as follows : The film temperature damage threshold is 90℃ with laser power 30W and irradiation time 2.52s, checked surface of the film is formed with irradiation time 10s.
- cw laser /
- interference filter /
- refractive index /
- transmission /
- film damage

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文章访问数: 2951
HTML全文浏览量: 232
PDF下载量: 787
被引次数: 0

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连续激光辐照ZnSe/MgF2/K9滤光片的透射特性研究

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CW laserinduced transmission change in ZnSe/MgF2/K9 filter

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出版历程

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