Title :
Ultrafast intervalley transitions in GaN single crystals
Author :
Wu, Shuai ; Geiser, P. ; Jun, J. ; Karpinski, J. ; Sobolewski, Roman
Author_Institution :
Department of Physics and Astronomy and the Laboratory for Laser Energetics, University of Rochester, NY 14627, USA
Abstract :
We have studied time-resolved intervalley transitions of electrons between the conduction band ¿ and L valleys in bulk GaN crystals using a two-color, femtosecond, pump-probe technique. The transition threshold and intervalley scattering times were determined.
Keywords :
Crystals; Electrons; Gallium nitride; Laser excitation; Laser transitions; Optical scattering; Particle scattering; Probes; Spectroscopy; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431100
