Converting surface plasmon polaritons into spatial bending beams through graded dielectric rectangles over metal film
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- 作者：Hui Lia ; b ; Yongzheng Xua ; Gang Wanga ; Tong Fua ; Li Wanga ; l.wang@snnu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Zhongyue Zhanga ; zyzhang@snnu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Surface plasmon polaritons ; Spatial bending beams ; Phase modulation ; Finite-element method
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：383
- 期：Complete
- 页码：423-429
- 全文大小：2794 K
文摘
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A group of dielectric rectangles over metal film is proposed.
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The appropriate locations of the dielectric rectangles are calculated by phase-modulation method.
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Converting SPPs into spatial beams showing arbitrary bending.
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Transverse acceleration and nondiffraction characteristics of spatial bending beams are observed.
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The effects of structural parameters on spatial bending beams are investigated.