Influence of multiple scattering on subwavelength imaging: transverse electric case

被引：5

作者：

Chen, Xudong ^{[1
]}

Zhong, Yu ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2010年 / 27卷 / 02期

关键词：

TIME-REVERSAL; INVERSE SCATTERING; RESOLUTION; MEDIA;

D O I：

10.1364/JOSAA.27.000245

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper uses the Cramer-Rao bound (CRB) to investigate the role of multiple scattering in the framework of transverse electric (TE) electromagnetic inverse scattering. The surface mode in the TE scattering case enables a strong multiple scattering effect even if the scatterers are widely separated. We show that multiple scattering does not always improve the accuracy of the estimation, compared with that expected with a fictitious single scattering model. The reason for the aforementioned conclusion is discussed. Two scenarios that favor the multiple scattering effect are discussed, and the differences between these scenarios and the CRB analysis are highlighted. (C) 2010 Optical Society of America

引用

页码：245 / 250

页数：6

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