MODULATION TRANSFER-FUNCTION MEASUREMENT TECHNIQUE FOR SMALL-PIXEL DETECTORS

被引:43
作者
MARCHYWKA, M
SOCKER, DG
机构
[1] Naval Research Laboratory, Washington, DC
来源
APPLIED OPTICS | 1992年 / 31卷 / 34期
关键词
MODULATION TRANSFER FUNCTION; SPATIAL RESOLUTION; CHARGE COUPLED DEVICE;
D O I
10.1364/AO.31.007198
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A modulation transfer function (MTF) measurement technique suitable for large-format, small-pixel detector characterization has been investigated. A volume interference grating is used as a test image instead of the bar or sine wave target images normally used. This technique permits a high-contrast, large-area, sinusoidal intensity distribution to illuminate the device being tested, avoiding the need to deconvolve raw data with imaging system characteristics. A high-confidence MTF result at spatial frequencies near 200 cycles/mm is obtained. We present results at several visible light wavelengths with a 6.8-mum-pixel CCD. Pixel response functions are derived from the MTF results.
引用
收藏
页码:7198 / 7213
页数:16
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