Schumann L W, Lomheim T S
Appl Opt. 1989 May 1;28(9):1701-9. doi: 10.1364/AO.28.001701.
The spectral modulation transfer function (MTF) of several architecturally identical commercial linear silicon charge coupled imagers (CCIs) was measured and compared to an MTF theory that included the effects of detector aperture and lateral diffusion in one dimension. A successful match between experimental data and theory was possible for proper choices of the detector aperture function and minority carrier lifetime. Long-wave (> 800-nm) MTF and spectral quantum efficiency (QE) data were very well correlated over the set of CCIs that were measured, indicating the key role of carrier lifetime (or equivalently carrier diffusion length) in determining both characteristics. This correlation was verified by exercising the MTF and QE models, tailored for the CCIs devices, with carrier lifetime as one of the free parameters.
测量了几种结构相同的商用线性硅电荷耦合成像器（CCI）的光谱调制传递函数（MTF），并将其与一种MTF理论进行比较，该理论包含了探测器孔径和一维横向扩散的影响。对于探测器孔径函数和少数载流子寿命的适当选择，实验数据与理论之间能够成功匹配。在所测量的一组CCI中，长波（>800纳米）MTF和光谱量子效率（QE）数据具有很好的相关性，这表明载流子寿命（或等效的载流子扩散长度）在决定这两个特性方面起着关键作用。通过以载流子寿命作为自由参数之一，对针对CCI器件定制的MTF和QE模型进行运算，验证了这种相关性。
