Kaura M A, Rhodes W T
Appl Opt. 1990 Jun 10;29(17):2587-93. doi: 10.1364/AO.29.002587.
Certain kinds of spatial light modulators (SLMs) can be used in a mode where the phase transmittance at a given point has the desired value, measured modulo-2pi, and the magnitude transmittance has approximately the desired value. Computer simulations, based on a specific model of a deformable-mirror SLM, show that these phase-with-coupled-magnitude SLMs perform better for the particular cases studied, in terms of discrimination and signal-to-clutter ratio, than phase-only and binary phase-only SLMs in coherent optical pattern-recognition correlators where the input is distorted by variable illumination, rotation, and noise relative to the template pattern.
某些类型的空间光调制器（SLM）可以在这样一种模式下使用：给定一点处的相位透过率具有所需的值（以2π为模测量），并且幅度透过率近似具有所需的值。基于可变形镜SLM的特定模型进行的计算机模拟表明，在相干光学模式识别相关器中，对于输入相对于模板图案因可变照明、旋转和噪声而失真的特定情况，这些具有耦合幅度的相位SLM在辨别力和信杂比方面比仅相位和仅二元相位的SLM表现更好。
