Study of responsiveness of near-field terahertz imaging probes

被引：15
|
作者：
Berta, Milan [1 ]
Kuzel, Petr [1 ]
Kadlec, Filip [1 ]
机构：
[1] Acad Sci Czech Republ, Inst Phys, CZ-18221 Prague 8, Czech Republic
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 15期
关键词：
D O I：
10.1088/0022-3727/42/15/155501
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on a study of the near-field sensitivity of a metal-dielectric near-field terahertz probe by time-domain terahertz spectroscopy. The obtained experimental data were analysed using principal component analysis. Principal components corresponding to the changes in the output terahertz pulse upon varying the probe-sample distance and reflecting the local anisotropy in a ferroelectric BaTiO3 crystal were extracted and identified. Simulations of the pulse propagation within a model of the probe revealed very similar independent components.
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页数：6
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