Ebook: Advances in Nonradiative Processes in Solids

This book presents an account of the course "Advances in Nonradiative Processes in Solids" held in Erice, Italy, from June 15 to 29, 1989. This meeting was organized by the International School of Atomic and Molecular Spectroscopy of the "Ettore Majorana" Centre for Scientific Culture. An area of solid state research that continues to attract the attention of experimental and theoretical physicists is that of nonradiative relaxation processes of excited solids. The interest in these processes stems from their technological relevance, and from the difficulty in the quantitative characterization and differentiation of their various pathways. The decay channels leading to the ground state include the conversion of electronic excitation energy into phonon energy, nonradiative transfer of excitation energy, upconversion processes, etc. Considerable advances have been achieved in understanding and modeling the radiative process that follow the electronic excitations of solids; the progress in this field has been instrumental in the development of new solid-state devices and laser materials. On the other hand, these advances have underscored the inadequacy in the understanding of the nonradiative relaxation processes. This course dealt with the advances in physical modeling, mathematical formalisms and experimental techniques relevant to the quantitative characterization of the various pathways of nonradiative relaxation of solids in excited electronic states.

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Content:
Front Matter....Pages i-xxx
Non-Radiative Relaxation of Solids: Different Pathways to the Ground State....Pages 1-28
The Role of Nonradiative Processes in the Spectroscopy of Optically Active Centers in Solids....Pages 29-62
Radiative and Nonradiative Rates in Luminescence Centers....Pages 63-133
Advances in Non-Radiative Processes in Solid State Laser Materials....Pages 135-173
Model Calculations of Nonradiative Multiphonon Processes in Inorganic Insulating Solids....Pages 175-195
Advances in Nonradiative Processes in Semiconductors....Pages 197-217
Radiative and Nonradiative Processes in Color Centers....Pages 219-259
Nonradiative Transitions Between Electronic Levels of Optically-Active Ions in Glass....Pages 261-286
Nonradiative Processes in Luminescent Materials: A Materials Scientists View....Pages 287-330
Techniques for the Investigation of Nonradiative Processes....Pages 331-351
New Applications of Efficient Phosphors....Pages 353-386
Energy Transfer in Cr, Tm:YAG....Pages 387-396
Luminescence and Nonradiative Processes in Porous Glasses....Pages 397-423
Laser Spectroscopy Techniques Applied to Cr3+ -Doped Materials....Pages 425-441
How to Play with Springs and Pulses in a Classical Harmonic Crystal....Pages 443-482
Thermal Response and Decoupling of Excitations at Low Temperatures....Pages 483-494
New Laser Crystals....Pages 495-496
Degenerate Four-Wave Mixing Technique for Studying Very Fast Radiationless Processes in Very Short Time Scale....Pages 497-527
Photothermal Optical Nonlinearities, Optical Bistability and Possible Applications....Pages 529-558
Crystals: Growth Methods and Characterization....Pages 559-576
Particles and Elementary Excitations....Pages 577-593
Excited State Absorption in Tb Activated Phosphor Powders....Pages 595-597
Back Matter....Pages 599-630
....Pages 631-647