Title :
Interdigitated terahertz emitters
Author :
Acuna, Guillermo P. ; Buersgens, Federico F. ; Lang, Christian ; Kersting, Roland
Author_Institution :
Photonics & Optoelectron. Group, Univ. of Munich, Munich
Abstract :
We present a time-resolved study on the ultrafast carrier dynamics, which lead to the emission of few-cycle THz pulses from biased semiconductor structures. The properties of the emitted THz radiation show that carrier transport in inhomogeneous fields dominates the emission due to transport of both, electrons and holes. The results are applied for the fabrication of a novel high intensity THz emitter with an improved device concept.
Keywords :
submillimetre wave devices; submillimetre wave generation; THz radiation; biased semiconductor structure; few-cycle THz pulse; interdigitated terahertz emitter; ultrafast carrier dynamics; Charge carrier processes; Electron emission; Fabrication; Fingers; Gallium arsenide; Millimeter wave devices; Millimeter wave measurements; Millimeter wave technology; Nonuniform electric fields; Pulse measurements; Millimeter wave generation; millimeter wave devices; time domain measurements;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516827
