| Foreword | p. vii |
| Preface | p. ix |
| Color Insert | p. 78 |
| Lasers with Nonresonant Feedback and Laserlike Emission from Powders: Early Ideas and Experiments | p. 1 |
| Idea of Laser with Nonresonant Feedback and Random Laser | p. 1 |
| Early Experiments | p. 4 |
| References | p. 7 |
| Neodymium Random Lasers: Experimental Studies of Stimulated Emission | p. 10 |
| First Observation of Stimulated Emission in Powders of Neodymium-Doped Materials | p. 10 |
| Basic Properties of Neodymium-Doped Random Lasers | p. 11 |
| Emission Kinetics | p. 12 |
| Spectrum of Laserlike Emission | p. 12 |
| Input-Output Dependence | p. 14 |
| Angular Distribution of Stimulated Emission | p. 15 |
| Stimulated Emission in Different Materials and Types of Samples | p. 16 |
| Stimulated Emission in Mixtures of Powders | p. 23 |
| Stimulated Emission Supported by Large Regularly Shaped Particles | p. 25 |
| Quantum Yild of Stimulated Emission | p. 27 |
| Coherence Studies | p. 30 |
| Interferometric Measurements of Longitudinal Coherence | p. 30 |
| Speckle Pattern Analysis | p. 33 |
| Interferometric Studies of Transversal Coherence | p. 35 |
| Dependence of the Stimulated Emission Threshold on the Diameter of the Pumped Spot | p. 39 |
| Dependence of the Stimulated Emission on the Powder Volume Density | p. 41 |
| Dependence of the Stimulated Emission on the Powder Particle Size | p. 44 |
| References | p. 47 |
| Propagation of Light in Neodymium Random Lasers | p. 52 |
| Propagation of Pumping Light | p. 52 |
| Model | p. 52 |
| Transmission and Reflection Measurements in Powders | p. 54 |
| Comparison of the Model Predictions with the Experimental Results | p. 55 |
| Determination of the Transport Mean Free Path in Random Laser Material | p. 57 |
| Experimental Samples and Absorption Spectra | p. 58 |
| Idea of Coherent Backscattering | p. 59 |
| Experimental Setup | p. 59 |
| Experimental Results | p. 60 |
| Correlation Between Transport Mean Free Path l[subscript t] and Particle Size s: Comparison with Experiment | p. 61 |
| References | p. 66 |
| Theoretical Modeling of Neodymium Random Lasers | p. 68 |
| Diffusion Model | p. 69 |
| Prediction of Stimulated Emission | p. 69 |
| Spectrum Narrowing | p. 69 |
| Application of the Diffusion Model to Stimulated Emission in a Mixture of Powders | p. 71 |
| Modeling of Stimulated Emission Dynamics | p. 72 |
| Invariance of the Threshold Pumping Energy in Different Pumping Regimes | p. 75 |
| Random Laser Threshold in cw Regime | p. 78 |
| Random Laser Threshold in Pulsed Regime | p. 79 |
| Spectral Dynamics of Neodymium Random Lasers | p. 82 |
| Stimulated Emission in One-Dimensional Array of Coupled Lasing Volumes | p. 83 |
| Calculation of Random Laser Threshold in Diffusion Approximation | p. 86 |
| Application of the Diffusion Model: Comparison with Experiment | p. 89 |
| Dependence of the Random Laser Threshold on the Diameter of the Pumped Spot | p. 91 |
| Model and Monte Carlo Simulation of the Residence Time | p. 92 |
| Calculation Results | p. 93 |
| Model of Coupled Intraparticle Resonators | p. 95 |
| References | p. 97 |
| Engineering Aspects of Neodymium Random Lasers: External Seeding, Design, and Second Harmonic Generation | p. 101 |
| Control of Neodymium Random Laser Emission with External Seeding Light | p. 101 |
| Effect of External Mirror on Stimulated Emission | p. 101 |
| Fiber-Coupled Random Laser | p. 105 |
| Demonstration of a Second-Harmonic Powder Laser | p. 107 |
| Experimental Samples | p. 107 |
| Experimental Results | p. 108 |
| Modeling: Comparison of Theory and Experiment | p. 109 |
| References | p. 118 |
| Random Lasers Pumped with Electron Beam | p. 120 |
| Rare-Earth Random Lasers Directly Pumped with Electron Beam | p. 120 |
| Ce:[delta]-Alumina Random Laser | p. 120 |
| Pr:[delta]-Alumina Random Laser | p. 125 |
| Nd:[delta]-Alumina Random Laser | p. 126 |
| Discussion of Experiments with Electron Beam-Pumped [delta]-Alumina Powders | p. 130 |
| Nd:YAG Pumped with an Electron Beam via Scintillator | p. 131 |
| References | p. 132 |
| Semiconductor Random Lasers | p. 135 |
| ZnO Random Laser: Phenomenological Description and Intuitive Model | p. 135 |
| Study of Angular Distribution of Stimulated Emission in ZnO Random Laser | p. 137 |
| Effect of External Feedback in ZnO Random Laser | p. 140 |
| ZnO Microlaser and Strong Spatial Confinement of Simulated Emission | p. 140 |
| Photon Statistics in ZnO Random Laser | p. 143 |
| Effect of the Pumped Area on the Operation of ZnO Random Laser | p. 145 |
| Study of the Dynamics of ZnO Random Laser | p. 148 |
| Spectrally Resolved Speckle Studies in ZnO Random Laser | p. 149 |
| Stimulated Emission from 3D Photonic Crystals Made of Self-Assembled ZnO Colloidal Spheres | p. 151 |
| Quasi cw Stimulated Emission in ZnO Pellet | p. 151 |
| New Technological Realizations of ZnO Random Lasers | p. 153 |
| Random Lasing in Epitaxially Grown GaAsN | p. 154 |
| GaAs Random Laser | p. 155 |
| References | p. 159 |
| Dye and Polymer Random Lasers | p. 164 |
| Liquid Dye Random Lasers | p. 164 |
| Liquid Dye Random Lasers with Nonresonant Feedback | p. 164 |
| Transition from Incoherent Regime of Operation to Coherent Regime of Operation | p. 168 |
| Solid-State Polymer Random Lasers with Nonresonant Feedback | p. 171 |
| Photonic Fibers | p. 171 |
| Random Laser Action from Semiconducting Polymers with TiO[subscript 2] Nanoparticles | p. 171 |
| Laserlike Emission in a Variety of Conjugated Polymers | p. 172 |
| Time-Resolved Studies of Stimulated Emission in Polymer Film | p. 173 |
| Polymer Random Lasers with Resonant Feedback | p. 178 |
| Transition from Incoherent Regime of Operation to Coherent Regime of Operation | p. 178 |
| Photon Statistics of Polymer Random Lasers | p. 180 |
| Fourier Transform of the Emission Spectra of Polymer Random Laser | p. 182 |
| Uniformity of Random Laser Cavities in Polymer Random Lasers | p. 184 |
| Coherent Polymer Random Lasers Based on PMMA Films Doped with Rhodamine 640 Dye and TiO[subscript 2] Particles | p. 186 |
| Other Random Lasers Based on Dyes and Polymers | p. 190 |
| References | p. 191 |
| Other Types of Solid-State Random Lasers | p. 198 |
| Praseodymium-Doped Oxisulfide Powder Lasers | p. 198 |
| Ti-Sapphire Random Laser | p. 198 |
| Experimental Observation of Stimulated Emission in Ti-Sapphire Powder | p. 198 |
| Qualitative Explanation of the Influence of a Channel Formation on Stimulated Emission in Powders | p. 200 |
| Studies of Light Amplification in Ti-Sapphire Powders | p. 201 |
| Color Center Powder Laser | p. 202 |
| Experimental Samples and Setup | p. 202 |
| Experimental Results | p. 203 |
| Stimulated Emission in CC:LiF Powder | p. 210 |
| Mid-Infrared Eye-Safe Random Lasers Based on Cr[superscript 2+]:ZnS and Cr[superscript 2+]:ZnSe | p. 212 |
| Superradiance and Superfluorescence in Random Laser Materials | p. 215 |
| Properties of Cooperative Emission | p. 215 |
| Experimental Observations of Superradiance and Superfluorescence in Random Laser Materials | p. 216 |
| References | p. 219 |
| Applications of Random Lasers | p. 222 |
| Additional Notes and References | p. 228 |
| Index | p. 230 |
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