arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1502.03324physics.optics
收藏

利用DMD和相位恢复技术无参考测量高散射材料的传输矩阵

Reference-less measurement of the transmission matrix of a highly scattering material using a DMD and phase retrieval techniques

Angelique Dremeau, Antoine Liutkus, David Martina, Ori Katz, Christophe Schulke, Florent Krzakala, Sylvain Gigan, Laurent Daudet

发表信息：
Optics Express Vol. 23, Issue 9, pp. 11898-11911 (2015)
阅读 PDF
arXiv 页面 ↗HTML 原文 ↗

摘要：

本文研究了用最简单的光学装置测量高散射介质透射矩阵的实验方法。空间光调制是由数字光调制器件（DMD）执行的，允许高速率和高像素计数，但只能进行二进制幅度调制。我们仅使用强度测量，从而避免了对参考光束的需要。因此，必须通过相位恢复的信号处理技术来估计TM的相位。在这里，我们比较了四种不同的相位恢复原则的噪声实验数据。我们验证我们的估计TM的三个标准：质量的预测，奇异值的分布，和质量的聚焦。结果表明，贝叶斯相位恢复算法与变分方法提供了一个很好的折衷之间的计算复杂性和精度的估计。

英文摘要：

This paper investigates experimental means of measuring the transmission matrix (TM) of a highly scattering medium, with the simplest optical setup. Spatial light modulation is performed by a digital micromirror device (DMD), allowing high rates and high pixel counts but only binary amplitude modulation. We used intensity measurement only, thus avoiding the need for a reference beam. Therefore, the phase of the TM has to be estimated through signal processing techniques of phase retrieval. Here, we compare four different phase retrieval principles on noisy experimental data. We validate our estimations of the TM on three criteria : quality of prediction, distribution of singular values, and quality of focusing. Results indicate that Bayesian phase retrieval algorithms with variational approaches provide a good tradeoff between the computational complexity and the precision of the estimates.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

↑