Title :
GaAs under intense photoexcitation: Ultrafast carrier and phonon dynamics
Author :
Basak, Amlan ; Hase, Muneaki ; Kitajima, Masahiro ; Petek, Hrvoje
Author_Institution :
Dept. of Phys. & Astron., Univ. of Pittsburgh, Pittsburgh, PA
Abstract :
Ultrafast eletro-optic sampling is used to observe the response of n-doped GaAs with varying photoexcitation. Photocarrier density dependent coherent LO phonon-plasmon dynamics are observed. Time-resolved analysis reveals complex spectral evolution.
Keywords :
III-V semiconductors; gallium arsenide; high-speed optical techniques; phonon-plasmon interactions; photoexcitation; GaAs; coherent LO phonon-plasmon dynamics; complex spectral evolution; intense photoexcitation; phonon dynamics; photocarrier density; time-resolved analysis; ultrafast carrier; ultrafast eletro-optic sampling; Anisotropic magnetoresistance; Gallium arsenide; Geometrical optics; Laser excitation; Optical pulses; Optical pumping; Optical scattering; Phonons; Probes; Ultrafast optics; (320.7130) Ultrafast processes in condensed matter, including semiconductors; 300.6240 Spectroscopy, coherent transient;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
