Plasmonic Apertures for THz QCL Near-Field Imaging

被引：0
|
作者：
Baragwanath, Adam J. [1 ]
Freeman, Joshua R. [2 ]
Gallant, Andrew J. [3 ]
Zeitler, J. Axel [4 ]
Beere, Harvey E. [2 ]
Ritchie, David A. [2 ]
Chamberlain, Martyn [1 ]
机构：
[1] Univ Durham, Dept Phys, Durham DH1 3LE, England
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[3] Univ Durham, Sch Engn & Comp Sci, Durham DH1 3LE, England
[4] Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge CB2 3RA, England
来源：
35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ 2010) | 2010年
关键词：
TRANSMISSION; WAVE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper we report on the fabrication and testing of sub-wavelength apertures surrounded by annular plasmonic structures, for use in near-field imaging with a QCL source. Both double corrugated structures and planarised designs have been tested, with the latter producing a spatially uniform far-field emission profile. Greatly increased transmission has been observed when using plasmonic apertures over standard plain apertures. Sub-wavelength resolution has been measured with a standard, near-field knife-edge test.
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页数：2
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