Title :
Investigation into the role of the metal mask and pump laser illumination parameters for lateral photo-Dember emitters
Author :
Barnes, M.E. ; McBryde, D. ; Gow, P.C. ; Berry, S.A. ; Daniell, Geoff J. ; Beere, H.E. ; Ritchie, D.A. ; Apostolopoulos, V.
Author_Institution :
Sch. of Phys. & Astron., Univ. of Southampton, Southampton, UK
Abstract :
In lateral photo-Dember emitters pulses of coherent terahertz radiation can be generated by ultrafast above bandgap laser illumination of the surface of a partially metallic masked semiconductor. We investigate the role of the metallic mask and how the emission depends on spot size and fluence.
Keywords :
Dember effect; optical pumping; semiconductors; terahertz waves; coherent terahertz radiation; lateral photoDember emitter pulses; partially metallic masked semiconductor surface; pump laser illumination parameters; spot size; ultrafast above bandgap laser illumination; Charge carrier processes; Gold; Laser theory; Mathematical model; Semiconductor device measurement; Surface emitting lasers;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665608
