利用扩展的尼霍夫-泽尼克理论证明了具有长焦深和高透射率的优化焦场。

Demonstration of an optimised focal field with long focal depth and high transmission obtained with the Extended Nijboer-Zernike theory.

作者信息

Konijnenberg A P, Wei L, Kumar N, Filho L Couto Correa Pinto, Cisotto L, Pereira S F, Urbach H P

出版信息

Opt Express. 2014 Jan 13;22(1):311-24. doi: 10.1364/OE.22.000311.

DOI:10.1364/OE.22.000311

Abstract

In several optical systems, a specific Point Spread Function (PSF) needs to be generated. This can be achieved by shaping the complex field at the pupil. The Extended Nijboer-Zernike (ENZ) theory relates complex Zernike modes on the pupil directly to functions in the focal region. In this paper, we introduce a method to engineer a PSF using the ENZ theory. In particular, we present an optimization algorithm to design an extended depth of focus with high lateral resolution, while keeping the transmission of light high (over 60%). We also have demonstrated three outcomes of the algorithm using a Spatial Light Modulator (SLM).

摘要

在多个光学系统中，需要生成特定的点扩散函数（PSF）。这可以通过对光瞳处的复场进行整形来实现。扩展的尼布尔 - 泽尼克（ENZ）理论将光瞳上的复泽尼克模式直接与焦平面区域的函数联系起来。在本文中，我们介绍一种利用ENZ理论设计PSF的方法。具体而言，我们提出一种优化算法，用于设计具有高横向分辨率的扩展焦深，同时保持高透光率（超过60%）。我们还使用空间光调制器（SLM）展示了该算法的三个结果。