Characterization and application of dichroic filters in the 0.1-3-THz region

被引：55

作者：

Winnewisser, C ^{[1
]}

Lewen, FT

Schall, M

Walther, M

Helm, H

机构：

[1] Univ Freiburg, Freiburg Mat Res Ctr, D-79104 Freiburg, Germany

[2] Univ Cologne, Inst Phys 1, D-50923 Cologne, Germany

[3] Univ Freiburg, Dept Mol & Opt Phys, D-79104 Freiburg, Germany

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2000年 / 48卷 / 04期

关键词：

frequency selective surfaces and components; submillimeter waveguide arrays; dichroic filters; evanescent modes; terahertz time-domain spectroscopy; time domain measurements; spectral analysis;

D O I：

10.1109/22.841968

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：

Low-loss dichroic filters, a subgroup of frequency-selective components, have been characterized by terahertz time-domain spectroscopy in the region from 0.1 to 3 THz and with Fourier transform spectroscopy. The two data sets are fully consistent, The time-domain spectrometer is used to investigate the phase velocity behavior of dichroic filters. The dichroic filters have various applications in frequency mixing, multiplying, and diplexing experiments. In a novel application, cascaded filters were used to limit the terahertz pulse bandwidth and to monitor molecular transitions of atmospheric water vapor in a selected frequency band.

引用

页码：744 / 749

页数：6

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