Comprehensive imaging of terahertz surface plasmon polaritons

被引：22
作者：
Wang, Sen [1 ,2 ,3 ]
Zhao, Feng [4 ]
Wang, Xinke [2 ,3 ]
Qu, Shiliang [1 ,5 ]
Zhang, Yan [1 ,2 ,3 ,6 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
[2] Capital Normal Univ, Dept Phys, Beijing Key Lab Terahertz Spect & Imaging, Beijing 100048, Peoples R China
[3] Minist Educ, Key Lab Terahertz Optoelect, Beijing 100048, Peoples R China
[4] Shaanxi Univ Technol, Sch Phys & Telecommun Engn, Hanzhong 723000, Peoples R China
[5] Harbin Inst Technol Weihai, Optoelect Dept, Weihai 264209, Peoples R China
[6] Beijing Ctr Math & Informat Interdisciplinary Sci, Beijing 100048, Peoples R China
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 14期
基金：
北京市自然科学基金; 中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
GOUY PHASE-SHIFT; PROPAGATION; VORTICES; OPTICS; BEAM; LENS;
D O I：
10.1364/OE.22.016916
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A comprehensive system with a high speed is built for imaging the terahertz (THz) surface plasmon polaritons (SPPs). Both the amplitude and the phase information of the focusing THz-SPPs excited by a semicircular plasmonic lens are achieved by using this system. The amplitude images present the focusing profiles of the THz-SPPs with different frequencies and the phase images reveal the Gouy phase shift as the THz-SPPs evolving through the focus. The simulations are also performed and a good agreement between the experimental and simulated results has been found. (C) 2014 Optical Society of America
引用
收藏
页码：16916 / 16924
页数：9
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