Terahertz near-field microscopy based on a collection mode detector

被引:104
作者
Mitrofanov, O [1 ]
Brener, I
Harel, R
Wynn, JD
Pfeiffer, LN
West, KW
Federici, J
机构
[1] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA
[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
关键词
D O I
10.1063/1.1328772
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report on the development of a collection mode near-field probe for the terahertz spectral range. The near-field detector is based on an aperture type probe with dimensions of 30x30 mum(2). The collection mode technique provides higher sensitivity and higher resolution than the similar illumination mode approach. Spatial resolution better than 40 mum is demonstrated for a broad spectrum of 300-600 mum, which equals to lambda /15 for the longest wavelength. The observed resolution is determined by the size of the probe aperture. (C) 2000 American Institute of Physics. [S0003-6951(00)02848-5].
引用
收藏
页码:3496 / 3498
页数:3
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