Holographic plasmonic lenses for surface plasmons with complex wavefront profile

被引：15

作者：

Chen, Yu-Hui ^{[1
]}

Zhang, Mingqian ^{[2
]}

Gan, Lin ^{[1
]}

Wu, Xiaoyu ^{[2
]}

Sun, Lin ^{[2
]}

Liu, Ju ^{[1
]}

Wang, Jia ^{[2
]}

Li, Zhi-Yuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100190, Peoples R China

[2] Tsinghua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 15期

基金：

中国国家自然科学基金;

关键词：

LIGHT; APERTURE; ARRAYS;

D O I：

10.1364/OE.21.017558

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a direct-method solution toward the general problem of plasmonic wavefront manipulation and shaping to realize pre-designated functionalities based on the surface-wave holography (SWH) method. We demonstrate theoretically and experimentally the design and fabrication of holographic plasmonic lenses over surface plasmons with complex wavefront profiles. We show that visible light at 632.8 nm transmitting through a high-aspect-ratio slit or a micro-rectangle hole in a silver film can be focused to a preset three-dimensional point spot in free space via appropriately manipulating the interaction of excited surface plasmons with the nanoscale groove pattern of the holographic lens. The experiment results of scanning near-field optical microscopy for measuring the three-dimensional optical field distribution agree well both with designs and with numerical simulations, and this strongly supports the effectiveness and efficiency of the SWH method in the design of plasmonic devices that can fulfill manipulation and transformation of complicated-profile surface plasmons. (C) 2013 Optical Society of America

引用

页码：17558 / 17566

页数：9

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