Title :
New THz emitter device concept based on lateral photo-dember currents
Author :
Klatt, G. ; Hilser, F. ; Beck, M. ; Huska, K. ; Bastian, G. ; Dekorsy, T.
Author_Institution :
Dept. of Phys., Univ. of Konstanz, Konstanz, Germany
Abstract :
This paper presents a new concept for the generation of terahertz (THz) radiation. Instead of accelerating carriers in an external bias field as state-of-the-art THz emitters generate THz radiation, the THz radiation is generated by lateral Photo-Dember currents induced by inhomogeneous optical excitation. The principle is proven in the simplest geometry on GaAs.
Keywords :
Dember effect; III-V semiconductors; electron mobility; gallium arsenide; hole mobility; photoexcitation; terahertz wave devices; terahertz wave generation; GaAs; THz emitter device; charge carriers; electron mobility; hole mobility; inhomogeneous optical excitation; photo-Dember effect; terahertz radiation generation; unidirectional carrier gradient; Charge carrier processes; Electron mobility; Electron optics; Gallium arsenide; Geometrical optics; High speed optical techniques; Laser excitation; Optical saturation; Stimulated emission; Surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191973
