Homodyne and heterodyne imaging through a scattering medium

被引：10

作者：

Khoury, J ^{[1
]}

Kane, JS

Gianino, PD

Hemmer, PL

Woods, CL

机构：

[1] Lartec Inc, Sudbury, MA 01776 USA

[2] AF Res Lab, SNHC, Hanscomb AFB, Bedford, MA 01731 USA

[3] Tufts Univ, Medford, MA 02155 USA

来源：

OPTICS LETTERS | 2001年 / 26卷 / 18期

关键词：

D O I：

10.1364/OL.26.001433

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce a novel two-dimensional (2D) homodyne and heterodyne technique for imaging objects through or embedded in a scattering medium. Our imaging approach is based on heterodyning of light with different Doppler broadenings that is scattered from objects of two different textures or from an opaque object and a textured scattering medium. We report on the initial demonstration of pulling signals out of noise for an object hidden behind a scattering medium. Enhancements of signal-to-noise ratio of the order of 50 have been achieved by use of a 2D holographic phase-sensitive detector. We also discuss the experimental feasibility of this approach for objects embedded in a scattering medium. (C) 2001 Optical Society of America.

引用

页码：1433 / 1435

页数：3

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