Titlebook: Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures; Jagdeep Shah Book 19961st edition Springer-Verlag Berlin Heidel

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Introduction,ve information and insights into the properties of atoms, molecules and solids. In semiconductors, the techniques of absorption, reflection, luminescence and light-scattering spectroscopies have provided invaluable information about such diverse aspects as the electronic band structure, phonons, cou

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Initial Relaxation of Photoexcited Carriers,real excitations, carriers and/or excitons remain in the crystal even after the coherence is destroyed. In most cases, the carrier or exciton distribution function after the loss of coherence is non-thermal; i.e., it can not be characterized by a temperature. We discuss in this chapter various exper

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Cooling of Hot Carriers,They achieve a distribution function characterized by a temperature in times of the order of 100 fs for the typical densities present in most femtosecond experiments. Initially, the temperatures of the electrons and the holes may be different, but a common temperature . . for the carrier system is t

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Phonon Dynamics,nons until the energy of the carrier is lower than the threshold for the emission of optical phonons. This is known as the phonon-cascade model and is appropriate mostly at low photoexcitation densities. Evidence for the cascade model was obtained in the form of peaks in the photocurrent and photolu

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