Semiconductors Probed by Ultrafast Laser Spectroscopy, Volume 1Robert R. Alfano Semiconductors Probed by Ultrafast Laser Spectroscopy, Volume 1 discusses the use of ultrafast laser spectroscopy in studying fast physics in semiconductors. It reviews progress on the experimental and theoretical understanding of ultrafast events that occur on a picosecond and nanosecond time scale. This volume first explores the relaxation of energy and the momentum of hot carriers and then turns to relaxation of plasmas and phonons. It also discusses the dynamics of excitons, polaritons, and excitonic molecules and reviews transient transport and diffusion of carriers. Scientists, engineers ... |
Contents
in Semiconductors | 4 |
Momentum Relaxation | 11 |
Picosecond Optoelectronic Measurement of Carrier Transport | 14 |
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acoustic phonon bandgap calculated carrier density carrier distribution carrier energy carrier temperature carrier-carrier scattering CdSe collision conduction band constant crystal curve decay deformation potential delay dependence diffraction diffusion coefficient discussed distribution function drift velocity dye laser effective mass effective temperature electric field electron temperature electron-hole energy relaxation equation equilibrium evolution excitation levels excitation pulse excitonic molecules excitonic polaritons experimental GaAs germanium grating group velocity Hearn holes hot carriers injection interaction intervalley laser lattice temperature Leheny Lett lifetime luminescence measured momentum relaxation MW/cm² nonequilibrium nonlinear nsec observed obtained phonon emission photoexcited photoexcited carriers photoluminescence Phys picosecond piezoelectric polar polaritons probe pulse probe transmission psec Raman recombination relaxation processes sample scattering mechanisms scattering rates screening Section semiconductors shown in Fig Smirl Solid State Commun spectroscopy state-filling steady-state techniques theoretical thermal time-resolved transient transitions transport valence band valley values vibrational wave vector