Title :
Interference experiments with a coherent tunable THz nipnip superlattice photomixer
Author :
Preu, S. ; Renner, F.H. ; Malzer, S. ; Döhler, G.H. ; Wang, L.J. ; Hanson, M. ; Gossard, A.C. ; Wilkinson, T.L.J. ; Brown, E.R.
Author_Institution :
Inst. for Opt., Inf. & Photonics, Univ. of Erlangen-Numberg, Erlangen
Abstract :
To date, THz radiation is mainly generated by pulsed sources. However, these are very expensive and bulky as strong solid-state pump sources are required to provide sufficient power. Additionally, the linewidth of the THz signal from pulsed systems is always Fourier-transform-limited in contrast to a CW THz source. We present a semiconductor based, room-temperature operating and frequency tunable CW system, based on photomixing with InGaAs nip nip-devices to generate the THz radiation.
Keywords :
Fourier transforms; submillimetre wave mixers; superlattices; Fourier transform; InGaAs nip nip-devices; THz radiation; coherent tunable THz nipnip superlattice photomixer; frequency tunable CW system; interference experiments; room-temperature operating CW system; solid-state pump sources; Capacitance; Charge carrier processes; Electrons; Frequency; Indium gallium arsenide; Interference; Optical superlattices; P-i-n diodes; Semiconductor diodes; Tunable circuits and devices;
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.2007.4516458
