Excitonic Processes in Solids

1. Introduction.- 1.1 The Ground State of Many-Body Systems and the Modes of Excitation.- 1.2 Electronic Excitation in Insulators and the Wannier-Mott Exciton.- 1.3 The Frenkel Exciton.- 1.4 The General Case.- 1.5 Optical Absorption Spectra.- 1.6 The Polariton and Spatial Dispersion.- 1.7 Scope of the Present Book.- 2. Theoretical Aspects of Excitonic Molecules.- 2.1 Fission and Fusion of Excitons vs. Chemical Reaction into Excitonic Molecules.- 2.2 The Excitonic Molecule and Electron-Hole Liquid.- 2.3 Optical Response of an Excitonic Molecule.- 2.4 Coherent Optical Phenomena Due to the Excitonic Molecule.- 2.5 The Excitonic Molecule at High Densities.- 3. The Exciton and Excitonic Molecule in Cuprous Halides.- 3.1 Band Structure and Excitonic States.- 3.2 Exciton Absorption, Reflection, and Emission Spectra.- 3.3 High-Density Excitation Effects.- 3.4 Giant Two-Photon Excitation of the Excitonic Molecule.- 3.5 Two-Photon Resonant Raman Scattering Via the Excitonic Molecule.- 3.6 Acoustic-Phonon Interaction of the Excitonic Molecule.- 3.7 Coexistence of Luminescence and Raman Components in the Resonant Excitation.- 3.8 Redistribution of Excitonic Molecules Resonantly Generated by Two-Photon Excitation.- 3.9 Relaxation of the Excitonic Molecule Due to Intermolecular Collisions: Influence on the GTA and Secondary Emissions.- 3.10 Spatial Dispersion of the Exciton and Excitonic Molecule.- 3.11 Higher Excited States of the Excitonic Molecule.- 4. Theory of Excitons in Phonon Fields.- 4.1 Electron-Phonon Interactions.- 4.2 The Exciton in Spatially Fluctuating Fields.- 4.3 Phonon Structures in Exciton Spectra.- 4.4 Self-Trapping.- 4.5 Electron-Hole Recombination.- 4.6 Excitonic Instability and Phase Changes.- 5. Excitons in Condensed Rare Gases.- 5.1 Electronic Structure of Condensed Rare Gases.- 5.2 Charge Carriers in Condensed Rare Gases.- 5.3 Excitons and Exciton-Phonon Interactions in Condensed Rare Gases.- 6. Exciton-Phonon Processes in Silver Halides.- 6.1 Electronic and Lattice Properties of Silver Halides.- 6.2 Excitons and Exciton-Phonon Interactions in Silver Halides.- 6.3 Relaxation Processes of Photo-Excited States in Silver and Alkali Halides.- 6.4 Localized Electrons and Holes in Silver Halides.- 7. Excitons and Their Interactions with Phonons and External Fields in Thallous Halides.- 7.1 Band Structures and Exciton States of Thallous Halides.- 7.2 Optical Spectra of Thallous Halides.- 7.3 Resonant Raman Scattering by Excitons in Thallous Halides.- 7.4 Excitons and Induced Self-Trapping in Mixed Crystals of Thallous Halides.- 7.5 Excitons in Thallous Halides in External Fields.- 8. Photocarrier Motion in Ionic Crystals.- 8.1 Photocurrent and Measurement.- 8.2 Measurements of Carrier Mobility and Cyclotron Resonance in Insulating Photoconductors.- 8.3 Polaron and Mobility.- 8.4 Magnetoconductivity.- 8.5 Polarons with High Energy.- 9. Excitons and Phonon Couplings in Quasi-One-Dimensional Crystals.- 9.1 Halogen-Bridged Mixed-Valence Chain Compounds.- 9.2 Polyacetylene.- 9.3 Mixed Stacked Donor-Acceptor Charge Transfer Complexes.- 9.4 Segregated Stacked Donor-Acceptor Charge Transfer Complexes.- References.