Luminescence centers in crystals
著者
書誌事項
Luminescence centers in crystals
（Proceedings (Trudy) of the P.N. Lebedev Physics Institute, v. 79）
Consultants Bureau, c1976
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T︠S︡entry li︠u︡minestsent︠s︡ii v kristallakh. English
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注記
Translation of T︠s︡entry li︠u︡minestesnt︠s︡ii v Kristallakh
Includes bibliographical references
内容説明・目次
内容説明
This collection of papers describes investigations of luminescence centers in II-VI crystal phosphors, ruby, and molecular crystals. These investigations were carried out using spec- troscopy in a wide range of wavelengths, electron paramagnetic resonance, and polarization methods. The relationship between the thermal and optical depths of electron traps is con- sidered specifically. The articles in this collection should be of interest to all scientists investigating the luminescence of solids. v CONTENTS Investigation of the Spectral-Luminescence Properties of Ruby as Active Laser Medium V. B. Neustruev Introduction ****. *** 1 Chapter I. Spectral Distribution of Luminescence Quantum Efficiency and Absorption Spectra . **. " * * * * . * * * * * * * . * * * * * * * * * * * * * * * * * * * * * * * 5 Chapter II. Phosphorescence of Ruby. Energy Band Scheme. * * * . * * * . * . * * * * * 12 Chapter III. Color Centers in Ruby. * * * . * * * * * * * * * * * * * * * * * * * * * * * * * * * . 16 Chapter IV.
目次
Investigation of the Spectral-Luminescence Properties of Ruby as Active Laser Medium.- I. Spectral Distribution of Luminescence Quantum Efficiency and Absorption Spectra.- II. Phosphorescence of Ruby. Energy Band Scheme.- III. Color Centers in Ruby.- IV. Effect of an External Electric Field on the Spectrum of Cr3+ in Ruby.- Conclusions.- Literature Cited.- Relationship between Optical Depths of Electron Traps.- 1. Theory of the Method.- 2. Phototransitions and Associated Optical and Thermal Trap Depths.- 3. Apparatus and Measurement Procedure.- 4. Investigated Samples and Excitation Method.- 5. Optical Depths of Traps in ZnS.- 6. Thermal Depths of Traps in ZnS.- 7. Adiabatic and Nonadiabatic Liberation of Electrons from Traps in ZnS.- 8. Optical and Thermal Depths of Traps in Diamond.- 9. Polarons in ZnS.- Literature Cited.- Nonisostructural Paramagnetic Centers in One-Activator Crystal Phosphors.- I. ESR of Mn Ions in ZnS.- II. Cubic and Hexagonal ZnS with Eu2+ Impurity Centers.- III. Influence of Irradiation on Cr3+ Centers in Ruby.- IV. Mn2+ Impurity Ions in the Na2ZnGeO4 Lattice.- Literature Cited.- Application of the Polarization Diagram Method to Studies of Uniaxial Crystals.- 1. Allowance for Birefringence.- 2. Allowance for Absorption of Exciting Light and Luminescence.- 3. Polarization Diagrams of a Rotator.- 4. General Case: Combination of a Linear Oscillator with a Rotator.- 5. Influence of Depolarization.- 6. Analysis of Some Specific Cases.- 7. Experimental Investigation of Zinc Sulfide.- Literature Cited.- Luminescence Polarization Investigation of the Structure of Doped Molecular Crystals.- 1. Structure Investigations of Doped Naphthalene Single Crystals.- 2. Structure Investigations of Crystals with Two Impurities.- 3. Structure Investigations of Doped Anthracene Single Crystals.- 4. Relationship between the Structure of Doped Crystals and Energy Migration between Impurity Molecules.- Literature Cited.- Influence of a Strong Electromagnetic Field on Phase Transitions in Ferroelectrics.- 1. Optically Induced Ferroelectric Transitions.- 2. Heating Effects in a Strong Optical Field.- Conclusion.- Literature Cited.
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