TIME-RESOLVED FOURIER SPECTRUM AND IMAGING IN HIGHLY SCATTERING MEDIA

被引：46

作者：

WANG, L

HO, PP

ALFANO, RR

机构：

[1] CUNY CITY COLL, DEPT PHYS, NEW YORK, NY 10031 USA

[2] CUNY, GRAD SCH, NEW YORK, NY 10021 USA

来源：

APPLIED OPTICS | 1993年 / 32卷 / 26期

关键词：

D O I：

10.1364/AO.32.005043

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Time and spatial-gated Fourier spectra and imaging were measured and analyzed. A picosecond Kerr-Fourier gate was used to image objects by selecting the spatial frequencies of objects illuminated by a laser pulse passing through a thick turbid medium. The earlier arriving ballistic/snake light and most of the later scattered light were spatially filtered and temporally separated to form an image. The image contrast and the signal-to-noise ratio of hidden objects in turbid media were greatly improved with the addition of Fourier spatial filtering.

引用

页码：5043 / 5048

页数：6

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