Real-time terahertz near-field microscope

被引：116
|
作者：
Blanchard, F. [1 ,2 ]
Doi, A. [2 ,3 ]
Tanaka, T. [1 ,2 ]
Hirori, H. [1 ,2 ]
Tanaka, H. [2 ,4 ]
Kadoya, Y. [2 ,4 ]
Tanaka, K. [1 ,2 ,5 ]
机构：
[1] Kyoto Univ, Inst Integrated Cell Mat Sci, Sakyo Ku, Kyoto 6068501, Japan
[2] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan
[3] Olympus Corp, Hachioji, Tokyo 1928512, Japan
[4] Hiroshima Univ, Dept Quantum Matter, Higashihiroshima 7398530, Japan
[5] Kyoto Univ, Grad Sch Sci, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 09期
关键词：
ELECTROOPTIC DETECTION; TRANSMISSION;
D O I：
10.1364/OE.19.008277
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a terahertz near-field microscope with a high dynamic range that can capture images of a 370 x 740 mu m(2) area at 35 frames per second. We achieve high spatial resolution (14 mu m corresponding to lambda/30 for a center frequency at 0.7 THz) on a large area by combining two novel techniques: terahertz generation by tilted-pulse-front excitation and electro-optic balanced imaging detection using a thin crystal. To demonstrate the microscope capability, we reveal the field enhancement at the gap position of a dipole antenna after the irradiation of a terahertz pulse. (C) 2011 Optical Society of America
引用
收藏
页码：8277 / 8284
页数：8
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