基于表面等离子体激元效应的可调制滤波器

林文魁; 李海军; 朱贺; 付思齐; 吕佳楠; 张宝顺

基于表面等离子体激元效应的可调制滤波器

林文魁^1,2,3, ,,
李海军^1,2,3,
朱贺^1,4,
付思齐^1,4,
吕佳楠^1,5,
张宝顺¹

1.
中科院苏州纳米所,江苏苏州215125;
2.
中科院半导体所,北京100083;
3.
中科院研究生院,北京100049;
4.
长春理工大学理学院,吉林长春130022;
5.
北京大学信息科学技术学院,北京100871

详细信息

通讯作者:
林文魁(1984-)，男(汉)，福建省泉州市人，硕士研究生，主要从事表面等离子体激元和THz研究工作。

中图分类号: TN713;O439
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出版历程
- 刊出日期: 2010-03-12

Modulated filter based on surface plasmon polarition

LIN Wen-kui^{1,2,3
, ,},
LI Hai-jun^1,2,3,
ZHU He^1,4,
FU Si-qi^1,4,
LU Jia-nan^1,5,
ZHANG Bao-shun¹

1.
Suzhou Institute of Nano-Tech and Nano-Bionics,CAS,Suzhou 215125,China;
2.
Institute of Semiconductors,CAS,Beijing 100083,China;
3.
Graduate University of Chinese Academy of Science,Beijing 100049,China;
4.
School of Science,Changchun University of Science and Technology,Changchun 130022,China;
5.
School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,China

摘要

摘要: 针对常用的光学滤波器滤波波长不可变的特点，提出一种利用表面等离子体激元效应实现可调制滤波的方法。该方法根据金属邻近电介质的介电常数发生改变时，金属与入射光波的表面等离子体激元耦合共振模式发生改变，以此实现滤波波长调制。在加工有亚波长纳米孔阵列的Au薄膜上制作了一可见光滤波器，实验中采用空气、酒精和油作为介质对器件进行调制。结果表明：相对于常用的光学滤波器，该器件由于可以方便地改变临近介质的介电常数，因此具有滤波波长连续可调、快速方便、波长变化精度高等特点。
- 表面等离子体激元 /
- 调制滤波器 /
- 电介质 /
- 纳米孔阵列
Abstract: Since the wavelength feature of an optical filter is fixed once it is made, surface plasmon polarition on a flat metal-dielectric interface is used to make a modulated filter. When light beam is focused on the metal-dielectric interface, the surface plasmon polarition (SPP) of metal-dielectric will be changed to modulate the wavelength of the filter by modulating the dielectric index of the dielectric layer. A modulated optical filter is fabricated on an Au film with a set of sub-wavelength nanometer hole arrays. In the experiment, air, alcohol and oil are selected as dielectric layers to test the filter. Unlike the conventional optical filter, this filter can be modulated continuously and conveniently.
- plasmon polarition /
- modulated filter /
- dielectric /
- nanometer hole array

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参考文献(1)

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