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

Autor: Sascha Preu, Norman Born, Oday Mazin Abdulmunem, Jan C. Balzer, Martin Koch, Martin Mikulics
Rok vydání: 2016
Předmět:
Zdroj: Microwave and Optical Technology Letters. 59:468-472
ISSN: 0895-2477
DOI: 10.1002/mop.30322
Popis: 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. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:468–472, 2017
Databáze: OpenAIRE