Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, USA.
Opt Lett. 2013 Jul 15;38(14):2546-9. doi: 10.1364/OL.38.002546.
We have developed a numerical technique for performing physics-based simulations of the modulation transfer function (MTF) of infrared detector focal plane arrays. The finite-difference time-domain and finite element methods are employed to determine the electromagnetic and electrical response, respectively. We show how the total MTF can be decomposed to analyze the effect of lateral diffusion of charge carriers and present several methods for mitigation of such effects. We employ our numerical technique to analyze the MTF of a HgCdTe two-color bias-selectable infrared detector array.
我们已经开发出一种数值技术，用于对红外探测器焦平面阵列的调制传递函数（MTF）进行基于物理的模拟。有限差分时间域和有限元方法分别用于确定电磁和电响应。我们展示了如何分解总 MTF 以分析电荷载流子横向扩散的影响，并提出了几种减轻这种影响的方法。我们利用我们的数值技术分析了 HgCdTe 双色偏置选择红外探测器阵列的 MTF。
