| 像元光敏宽度对干涉成像仪复原光谱幅值的影响 |
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| 引用本文： | 吴娜,向阳. 像元光敏宽度对干涉成像仪复原光谱幅值的影响[J]. 光学技术, 2008, 34(2): 246-248 |
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| 作者姓名： | 吴娜 向阳 |
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| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,长春,130033;中国科学院研究生院,北京,100039
2. 中国科学院长春光学精密机械与物理研究所,长春,130033 |
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| 摘 要： | 推导出了静态干涉成像光谱仪的探测器阵列采样空间调制干涉图的实际数学表达式,由此进一步推导出了含像元光敏宽度的复原光谱幅值的一般表达式。分析结果表明,当像元间距一定时,光敏宽度对复原光谱幅值存在影响。对于确定的光敏宽度,随着波数的变长,复原光谱幅值所受到的影响逐渐增大;对于确定的波数,随着光敏宽度的变宽,复原光谱幅值所受到的影响逐步增大。
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| 关 键 词： | 光谱学 傅里叶变换 干涉图 采样 复原光谱幅值 像元光敏宽度 |
| 文章编号： | 1002-1582(2008)02-0246-03 |
| 修稿时间： | 2007-04-16 |
Effect of the pixel photosensor width on the recovered spectral intensity in static interferometric imagers |
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| WU Na,XIANG Yang. Effect of the pixel photosensor width on the recovered spectral intensity in static interferometric imagers[J]. Optical Technique, 2008, 34(2): 246-248 |
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| Authors: | WU Na XIANG Yang |
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| Abstract: | The practical mathematical equation for detector array sampling the spatially modulated interferogram is deduced in static interferometric imagers,and the equation for the recovered spectrum is derived which takes into account the pixel photosensor width.The results of mathematical analysis show that the recovered spectral intensity is affected by the pixel photosensor width.For a given pixel photosensor width,the effect on the recovered spectral intensity increases with increasing wavenumber.And for a fixed wavenumber,the effect increases with increasing pixel photosensor width. |
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| Keywords: | spectroscopy Fourier transform interferogram sampling recovered spectral intensity pixel photosensor width |
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