金属层亚波长狭缝中光波耦合

肖星星; 陈跃刚

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金属层亚波长狭缝中光波耦合

论文 | 更新时间：2020-08-12

- 金属层亚波长狭缝中光波耦合
- Investigation of Optical Wave Coupling between Two Subwavelengh Slits in Metallic Sheet
- 发光学报 2009年30卷第5期页码：682-686
- 作者机构：
  
  贵州大学物理系
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TN256;O484.4+1
- 收稿：2009-01-19，
  
  修回：1900-1-2，
  
  网络首发：2009-10-30，
  
  纸质出版：2009-10-30
- 稿件说明：
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肖星星, 陈跃刚. 金属层亚波长狭缝中光波耦合[J]. 发光学报, 2009,30(5):682-686.

XIAO Xing-xing, CHEN Yue-gang. Investigation of Optical Wave Coupling between Two Subwavelengh Slits in Metallic Sheet[J]. Chinese Journal of Luminescence, 2009, 30(5): 682-686.
肖星星, 陈跃刚. 金属层亚波长狭缝中光波耦合[J]. 发光学报, 2009,30(5):682-686. DOI：

XIAO Xing-xing, CHEN Yue-gang. Investigation of Optical Wave Coupling between Two Subwavelengh Slits in Metallic Sheet[J]. Chinese Journal of Luminescence, 2009, 30(5): 682-686. DOI：

摘要

亚波长波导能够控制光在亚波长的尺寸中以很小损耗传输

在集成光学中有广泛的应用。利用二维时域有限差分(FDTD)法

研究了光波在金属层中亚波长两狭缝之间的耦合过程。分别在较厚的金属层前表面和后表面刻上两个狭缝

纵向错开一定距离(间距)

横向重叠一定长度(耦合长度)

两个狭缝能够将光波从金属层的前表面耦合到后表面。改变两个狭缝长度、间距和耦合长度等参数

耦合波长和效率发生明显变化。结合振幅分布

认为光波在两狭缝形成波导共振

前表面狭缝的共振将入射波能量耦合进入狭缝中

后表面狭缝的共振将能量耦合出去

两个狭缝之间通过隧穿效应耦合。

Abstract

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references

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