On-chip terahertz Goubau-line waveguides with integrated photoconductive emitters and mode-discriminating detectors
On-chip terahertz Goubau-line waveguides with integrated photoconductive emitters and mode-discriminating detectors
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DOI：
10.1063/1.3216579
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发表时间：
2009-08-31
影响因子：
4
通讯作者：
Davies, A. G.
中科院分区：
文献类型：
--
作者：
Dazhang, L.;Cunningham, J.;Davies, A. G.
We have measured the picosecond time-domain response of Goubau-line waveguides, formed on quartz substrates, by integrating regions of low-temperature-grown gallium arsenide into the waveguides to act both as pulsed current emitters and detectors. Using one pair of photoconductive switches for excitation and a second pair for detection, pulsed signal propagation of a low dispersion electric field mode was demonstrated in the Goubau-lines, with the signal bandwidth extending beyond 800 GHz. Furthermore, it was demonstrated that terahertz bandstop filters can be integrated into a Goubau-line for removal of specific frequencies from the transmitted pulses. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3216579]
