SCATTERING BY A SMALL OBJECT CLOSE TO AN INTERFACE .2. STUDY OF BACKSCATTERING

被引:52
作者
MUINONEN, KO [1 ]
SIHVOLA, AH [1 ]
LINDELL, IV [1 ]
LUMME, KA [1 ]
机构
[1] HELSINKI UNIV TECHNOL,ELECTROMAGNET LAB,SF-02150 ESPOO,FINLAND
来源
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1991年 / 8卷 / 03期
关键词
D O I
10.1364/JOSAA.8.000477
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Scattering by a small object located close to an interface is analyzed according to the exact-image theory formulation. The scatterer is assumed to be small compared with wavelength, permitting the electric-dipole approximation, and to have a scalar polarizability. After the derivation of the dipole moment, investigations concentrate on far-field scattering. Backscattering enhancement and reversal of linear polarization are confirmed through statistical averaging over scatterer height and system orientation.
引用
收藏
页码:477 / 482
页数:6
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