Photoinduced Generation of Defects and Photochromism in Homogeneous Silicate Glasses Intrinsic, Extrinsic, and Induced Absorption Spectra Color Center Generation by Intrinsic and Extrinsic Absorption Band Excitation Thermal Fading and Optical Bleaching of Color Centers Photochromic Properties of Homogeneous Silicate Glasses Basic Parameters of Photochromic Materials and Methods for Their Measurement Phenomenological Description of the Properties of Materials with Unstable Photoinduced Absorption Integral and Spectral Photosensitivity Spatial Inhomogeneity of Coloration Photometric Setup for Nonstationary Characteristics Measurement Photosensitive Phase Formation in Heterogeneous Photochromic Glasses The Conditions for Heterogeneous System Transparency The Role of the Vitreous Host in Heterogeneous System Formation Crystalline Phase Precipitation in the Process of Heat Treatment Spectral Properties of Photochromic Glasses Spectra of Silver Halide Glasses Absorption Spectra of Nonexposed Glasses Spectra of Photoinduced Absorption Effect of Optical Bleaching on Photoinduced Absorption Spectra Spectra of Copper Halide Glasses Absorption Spectra and Electronic Structure of Nonirradiated Glasses Nonlinear Absorption Effect of Scattering on Photoinduced Attenuation Spectra Kinetics of Coloration, Fading, and Bleaching Mechanisms of Photoinduced Coloration Mechanisms of Thermal Fading Simulation of Kinetic Processes General Statement of the Simulation Problem Kinetics of Coloration Technology of Photochromic Glasses Melting and Heat Treatment Effect of Composition on Properties Silver Chloride Silver Bromide Silver Iodide Copper Admixture Cation Additives Anion Additives Waveguides in Photochromic Glasses Optical Properties of Planar Ion Exchanged Waveguides Effect of Ion Exchange on Photochromic Properties Anisotropy of Photochromism Mode Selection Light Propagation in Coupled Photochromic Waveguides Optical Sensitization of Coloration Effect of Visible Light on Colored Photochromic Glasses and Waveguides Cooperative Breeding of Color Centers Recording and Amplification of Images at Long Wavelength Sensitization References Index