空间信息在浑浊介质中的时间传播。

Temporal propagation of spatial information in turbid media.

作者信息

Bassi Andrea, D'Andrea Cosimo, Valentini Gianluca, Cubeddu Rinaldo, Arridge Simon

机构信息

Italian Institute of Technology, Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, Milano, 20133, Italy.

出版信息

Opt Lett. 2008 Dec 1;33(23):2836-8. doi: 10.1364/ol.33.002836.

DOI:10.1364/ol.33.002836

PMID:19037443

Abstract

The time-resolved propagation of spatial frequencies in turbid media is investigated. We discuss the relevant information content in terms of the spatial Fourier component of the propagating pulse. We present a method to record and analyze the time-gated spatial frequency response of highly scattering media. We demonstrate that high spatial frequency information appears in the early time-gated signal, whereas low frequencies persist for longer times.

摘要

研究了空间频率在混浊介质中的时间分辨传播。我们根据传播脉冲的空间傅里叶分量来讨论相关的信息内容。我们提出了一种记录和分析高散射介质的时间选通空间频率响应的方法。我们证明，高空间频率信息出现在早期时间选通信号中，而低频率则持续更长时间。