Frankfurt (Main), Universiẗat, Diss., 2002.
An Optoelectronic CW THz Source for Imaging Applications (2002)
Siebert, Karsten, Segschneider, Gregor, Quast, Holger, Roskos, Hartmut G., Tautz, Soenke
We report on optoelectronic generation of continuous-wave (cw) THz radiation from a two-colour Ti:sapphire laser source. The laser emits two beams with a frequency difference between 1 GHz and 50 THz...
Frankfurt (Main), Universiẗat, Diss., 2002 (Nicht für den Austausch).
Midbandgap electro-optic detection of Bloch oscillations (2000)
Först, Michael, Segschneider, Gregor, Dekorsy, Thomas, Kurz, Heinrich, Köhler, Klaus
Bloch oscillations excited in a biased GaAs/AlxGa1-xAs superlattice are investigated in a time-resolved two-color electro-optic detection scheme. The detection of resonantly excited Bloch...
Segschneider, Gregor, Dekorsy, Thomas, Kurz, Heinrich, Hey, Rudolf, Ploog, Klaus
We investigate the relaxation dynamics of photogenerated carriers in low-temperature grown GaAs by femtosecond pump-probe measurements. The carrier dynamics in the vicinity of the band edge is...