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High accuracy terahertz time-domain system for reliable characterization of photoconducting antennas

Abdulmunem, Oday Mazin and Born, Norman and Mikulics, Martin and Balzer, Jan Christof and Koch, Martin and Preu, Sascha (2017):
High accuracy terahertz time-domain system for reliable characterization of photoconducting antennas.
In: Microwave and Optical Technology Letters, Wiley Online Library, pp. 468-472, 59, (2), [Online-Edition: http://onlinelibrary.wiley.com/doi/10.1002/mop.30322/full],
[Article]

Abstract

We report on a terahertz (THz) time-domain system to characterize photoconductive THz emitters and detectors, that is designed for highest reproducibility. This system is excellently suited for studying the performance of THz sources and detectors in a systematic manner, either by varying the substrate materials or the geometrical parameters of metallic antenna contacts building a photoconductive switch. After confirming the reproducibility and stability of the system with errors of only 1.9% (over 3 h) and 2.6% (over 9 days), we use the system to compare the performance of five low temperature grown (LT) GaAs wafers with growth temperatures between 200°C and 300°C.

Item Type: Article
Erschienen: 2017
Creators: Abdulmunem, Oday Mazin and Born, Norman and Mikulics, Martin and Balzer, Jan Christof and Koch, Martin and Preu, Sascha
Title: High accuracy terahertz time-domain system for reliable characterization of photoconducting antennas
Language: English
Abstract:

We report on a terahertz (THz) time-domain system to characterize photoconductive THz emitters and detectors, that is designed for highest reproducibility. This system is excellently suited for studying the performance of THz sources and detectors in a systematic manner, either by varying the substrate materials or the geometrical parameters of metallic antenna contacts building a photoconductive switch. After confirming the reproducibility and stability of the system with errors of only 1.9% (over 3 h) and 2.6% (over 9 days), we use the system to compare the performance of five low temperature grown (LT) GaAs wafers with growth temperatures between 200°C and 300°C.

Journal or Publication Title: Microwave and Optical Technology Letters
Volume: 59
Number: 2
Publisher: Wiley Online Library
Uncontrolled Keywords: photoconductive switch; terahertz; time domain spectroscopy
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics > Terahertz Systems Technology
18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics
18 Department of Electrical Engineering and Information Technology
Date Deposited: 10 Feb 2017 18:34
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/mop.30322/full
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