Title :
Efficient CW terahertz generation with n-i-pn-i-p photomixers
Author :
Döhler, G.H. ; Preu, S. ; Malzer, S. ; Wang, L.J. ; Hanson, M. ; Zimmerman, J.D. ; Gossard, A.C. ; Wilkinson, T.L.J. ; Brown, E.R.
Author_Institution :
Univ. of Erlangen-Nuremberg, Erlangen
Abstract :
We report on a concept for highly efficient generation of terahertz (THz) radiation and its verification by experimental studies. The THz generation is based on photomixing in a periodic stack of specially designed pin- photodiodes. This design allows to suppress the slow hole transport, to optimize high-speed ballistic electron transport in the photodiodes and, at the same time, to avoid the degradation of the high-frequency performance due to the usual "RC- roll-off.
Keywords :
ballistic transport; microwave photonics; p-i-n photodiodes; submillimetre wave generation; CW terahertz generation radiation; RC- roll-off; high-speed ballistic electron transport optimization; n-i-pn-i-p photomixers; pin- photodiodes; slow hole transport; Absorption; Electromagnetic radiation; Frequency; Laser beams; Laser tuning; Photonics; Power lasers; Quantum cascade lasers; Semiconductor lasers; Space technology; frequency mixing; high-field ballistic transport; optoelectronics; semiconductor nanostructures;
Conference_Titel :
Physics of Semiconductor Devices, 2007. IWPSD 2007. International Workshop on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4244-1728-5
Electronic_ISBN :
978-1-4244-1728-5
DOI :
10.1109/IWPSD.2007.4472515
