| GaAs光电阴极与景物反射光谱的光谱匹配系数 |
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| 引用本文： | 李蔚,常本康. GaAs光电阴极与景物反射光谱的光谱匹配系数[J]. 光子学报, 1999, 28(9): 857-859 |
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| 作者姓名： | 李蔚 常本康 |
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| 作者单位： | 南京理工大学电子工程和光电技术学院,南京,210094 |
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| 摘 要： | 本文根据光谱匹配系数的表达式,计算了GaAs光电阴极与暗绿色涂层、粗糙混凝土和绿色草木的光谱匹配系数.在满月光下,其结果分别为0.4519、0.5184 和0.6927;在晴朗星光下,分别为0.5866、0.6125和0.6513并分析比较了GaAs和两种S25光电阴极与景物反射光谱的光谱匹配系数,说明具有良好观测效果的三代夜视仪是与光电阴极与景物反射光谱之间良好的匹配程度分不开的.
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| 关 键 词： | 光电阴极 光谱响应 光谱匹配系数 |
| 收稿时间： | 1999-05-31 |
| 修稿时间： | 1999-05-31 |
SPECTRAL MATCHING FACTORS OF GaAs PHOTOCATHODE FOR REFLECTING SPECTRUMS OF SCENES |
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| Li Wei,Chang Benkang. SPECTRAL MATCHING FACTORS OF GaAs PHOTOCATHODE FOR REFLECTING SPECTRUMS OF SCENES[J]. Acta Photonica Sinica, 1999, 28(9): 857-859 |
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| Authors: | Li Wei Chang Benkang |
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| Affiliation: | Nanjing University of Science and Technology, Nanjing 210094 |
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| Abstract: | In this paper according to the formula of spectral matching factor,the spectral matching factors of GaAs photocathode for dark green paint,rough concrete and green vegetation are calculated.The calculation results are 0.4519,0.5184 and 0.6927 under the full moon radiation and 0.5866, 0.6125 and 0.6513 under the clear star radiation respectively.The spectral matching factors of GaAs and S 25 photocathodes for reflecting spectrums of scenes are analysed and compared.It shows that the third generation nightvision devices which have good observational results are relative to the good matching degree of the photocathodes for the reflecting spectrums of scenes. |
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| Keywords: | Photocathode Spectral response Spectral matching factor |
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