Electric control of enhanced lateral shift owing to surface plasmon resonance in Kretschmann configuration with an electro-optic crystal

被引:33
|
作者
Wang, H. F. [1 ]
Zhou, Z. X. [1 ]
Tian, H. [1 ]
Liu, D. J. [1 ]
Shen, Y. Q. [1 ]
机构
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
Goos-Hanchen shift; electric control; Kretschmann configuration; surface plasmon resonance; electro-optic crystal; GOOS-HANCHEN SHIFTS; BEAM DISPLACEMENT; TOTAL REFLECTION; DIELECTRIC SLAB; EXCITATION; METAL;
D O I
10.1088/2040-8978/12/4/045708
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper, the electric control of enhanced lateral shift owing to surface plasmon excitation in the Kretschmann configuration with an electro-optic crystal prism is analyzed. The large positive and negative lateral shifts are due to the excitation of surface plasmon resonance. The sign and the magnitude of the lateral shift can be conveniently controlled by adjusting the applied electric field as well as by altering the angle of incidence. Angular modulation in this configuration can be replaced by the modulation of the applied electric field since their effects on reflectivity, phase and lateral shift of the reflected beam are similar. Numerical simulations confirm the theoretical analysis.
引用
收藏
页数:6
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