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Author : Yimin Chen
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (354 download)
Download or read book The Shifts in the Gravity Centers of Energy Levels of Rare Earth Ions Due to Crystal Field written by Yimin Chen and published by . This book was released on 1990 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 290 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 582 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1991-10 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cornelis R. Ronda
Publisher : John Wiley & Sons
ISBN 13 : 9783527314027
Total Pages : 280 pages
Book Rating : 4.3/5 (14 download)
Download or read book Luminescence written by Cornelis R. Ronda and published by John Wiley & Sons. This book was released on 2007-12-03 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this, the only up-to-date book on this key technology, the number-one expert in the field perfectly blends academic knowledge and industrial applications. Adopting a didactical approach, Professor Ronda discusses all the underlying principles, such that both researchers as well as beginners in the field will profit from this book. The focus is on the inorganic side and the phenomena of luminescence behind the manifold applications illustrated here, including displays, LEDs, lamps, and medical applications. Valuable reading for chemists and electrochemists, as well as materials scientists, those working in the optical and chemical industry, plus lamp and lighting manufacturers.
Author :
Publisher :
ISBN 13 :
Total Pages : 1166 pages
Book Rating : 4.:/5 (318 download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1130 pages
Book Rating : 4.:/5 (89 download)
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1156 pages
Book Rating : 4.3/5 (91 download)
Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Hufner
Publisher : Elsevier
ISBN 13 : 0323158986
Total Pages : 252 pages
Book Rating : 4.3/5 (231 download)
Download or read book Optical Spectra of Transparent Rare Earth Compounds written by S. Hufner and published by Elsevier. This book was released on 2012-12-02 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Spectra of Transparent Rare Earth Compounds investigates the optical spectra of transparent rare earth (RE) compounds such as europium chalcogenides. Emphasis is placed on the underlying physics in selected examples, and theoretical results are usually presented without proof in a form that allows their application to the interpretation of experimental data. This book is comprised of 11 chapters and begins with an overview of the spectra of RE ions in ionic crystals, paying particular attention to the sharpness of many lines in the absorption and emission spectra. How these very narrow lines arise, what interactions determine their energy, and how they can be used to investigate particular properties of the solid state are explained in detail. Subsequent chapters explore the energy structure of RE free ions in solids; trivalent RE ions in a static crystal field and in a phonon field; magnetic interactions and hyperfine interactions; and Jahn-Teller systems. The absorption spectra of europium chalcogenides are also considered, along with REs in glasses and RE lasers. This monograph is written primarily for solid state physicists and those who need an overall view of the basic features of rare earth spectra in transparent solids, such as new workers.
Author : Uygun V. Valiev
Publisher : Scientific Research Publishing, Inc. USA
ISBN 13 : 1618960547
Total Pages : 146 pages
Book Rating : 4.6/5 (189 download)
Download or read book Magnetooptical Spectroscopy of the Rare-Earth Compounds: Development and Application written by Uygun V. Valiev and published by Scientific Research Publishing, Inc. USA. This book was released on 2012-01-05 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparison of theory with experiment is made for rare-earth compounds with garnet structure and orthoaluminate whose optical, magnetic and magnetooptical features have been studied sufficiently well by now.
Author : J. Mulak
Publisher : Elsevier
ISBN 13 : 0080530710
Total Pages : 319 pages
Book Rating : 4.0/5 (85 download)
Download or read book The Effective Crystal Field Potential written by J. Mulak and published by Elsevier. This book was released on 2000-06-22 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: As it results from the very nature of things, the spherical symmetry of the surrounding of a site in a crystal lattice or an atom in a molecule can never occur. Therefore, the eigenfunctions and eigenvalues of any bound ion or atom have to differ from those of spherically symmetric respective free ions. In this way, the most simplified concept of the crystal field effect or ligand field effect in the case of individual molecules can be introduced. The conventional notion of the crystal field potential is narrowed to its non-spherical part only through ignoring the dominating spherical part which produces only a uniform energy shift of gravity centres of the free ion terms. It is well understood that the non-spherical part of the effective potential "seen" by open-shell electrons localized on a metal ion plays an essential role in most observed properties. Light adsorption, electron paramagnetic resonance, inelastic neutron scattering and basic characteristics derived from magnetic and thermal measurements, are only examples of a much wider class of experimental results dependent on it. The influence is discerned in all kinds of materials containing unpaired localized electrons: ionic crystals, semiconductors and metallic compounds including materials as intriguing as high-Tc superconductors, or heavy fermion systems. It is evident from the above that we deal with a widespread effect relative to all free ion terms except those which can stand the lowered symmetry, e.g. S-terms. Despite the universality of the phenomenon, the available handbooks on solid state physics pay only marginal attention to it, merely making mention of its occurrence. Present understanding of the origins of the crystal field potential differs essentially from the pioneering electrostatic picture postulated in the twenties. The considerable development of the theory that has been put forward since then can be traced in many regular articles scattered throughout the literature. The last two decades have left their impression as well but, to the authors' best knowledge, this period has not been closed with a more extended review. This has also motivated us to compile the main achievements in the field in the form of a book.
Author : Galina Nemova
Publisher : CRC Press
ISBN 13 : 1315341050
Total Pages : 477 pages
Book Rating : 4.3/5 (153 download)
Download or read book Laser Cooling written by Galina Nemova and published by CRC Press. This book was released on 2016-10-26 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent decades, laser cooling or optical refrigeration—a physical process by which a system loses its thermal energy as a result of interaction with laser light—has garnered a great deal of scientific interest due to the importance of its applications. Optical solid-state coolers are one such application. They are free from liquids as well as moving parts that generate vibrations and introduce noise to sensors and other devices. They are based on reliable laser diode pump systems. Laser cooling can also be used to mitigate heat generation in high-power lasers. This book compiles and details cutting-edge research in laser cooling done by various scientific teams all over the world that are currently revolutionizing optical refrigerating technology. It includes recent results on laser cooling by redistribution of radiation in dense gas mixtures, three conceptually different approaches to laser cooling of solids such as cooling with anti-Stokes fluorescence, Brillouin cooling, and Raman cooling. It also discusses crystal growth and glass production for laser cooling applications. This book will appeal to anyone involved in laser physics, solid-state physics, low-temperature physics or cryogenics, materials research, development of temperature sensors, or infrared detectors.
Author : Shigeo Shionoya
Publisher : CRC Press
ISBN 13 : 1420005235
Total Pages : 1078 pages
Book Rating : 4.4/5 (2 download)
Download or read book Phosphor Handbook written by Shigeo Shionoya and published by CRC Press. This book was released on 2018-10-03 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt: A benchmark publication, the first edition of the Phosphor Handbook set the standard for references in this field. Completely revised and updated, this second edition explores new and emerging fields such as nanophosphors, nanomaterials, UV phosphors, quantum cutters, plasma display phosphors, sol-gel and other wet phosphor preparation techniques, preparation through combustion, bioluminescence phosphors and devices, and new laser materials such as OLED. It also contains new chapters on the applications of phosphors in solid state lighting, photoionization of luminescent centers in insulating phosphors, and recent developments in halide-based scintillators. The handbook provides a comprehensive description of phosphors with an emphasis on practical phosphors and their uses in various kinds of technological applications. It covers the fundamentals, namely the basic principles of luminescence, the principle phosphor materials, and their optical properties. The authors describe phosphors used in lamps, cathode-ray tubes, x-ray, and ionizing radiation detection. They cover common measurement methodology used to characterize phosphor properties, discuss a number of related items, and conclude with the history of phosphor technology and industry.
Author : William M. Yen
Publisher : CRC Press
ISBN 13 : 1420043684
Total Pages : 352 pages
Book Rating : 4.4/5 (2 download)
Download or read book Fundamentals of Phosphors written by William M. Yen and published by CRC Press. This book was released on 2018-10-03 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing from the second edition of the best-selling Handbook of Phosphors, Fundamentals of Phosphors covers the principles and mechanisms of luminescence in detail and surveys the primary phosphor materials as well as their optical properties. The book addresses cutting-edge developments in phosphor science and technology including oxynitride phosphors and the impact of lanthanide level location on phosphor performance. Beginning with an explanation of the physics underlying luminescence mechanisms in solids, the book goes on to interpret various luminescence phenomena in inorganic and organic materials. This includes the interpretation of the luminescence of recently developed low-dimensional systems, such as quantum wells and dots. The book also discusses the excitation mechanisms by cathode-ray and ionizing radiation and by electric fields to produce electroluminescence. The book classifies phosphor materials according to the type of luminescence centers employed or the class of host materials used and interprets the optical properties of these materials, including their luminescence characteristics and mechanisms. Placing a strong emphasis on those materials that are important from a practical point of view, the coverage also includes those possessing no possibility for practical use but are important from a theoretical standpoint.
Author : Xu Guangxian
Publisher : Elsevier
ISBN 13 : 1483259633
Total Pages : 838 pages
Book Rating : 4.4/5 (832 download)
Download or read book New Frontiers in Rare Earth Science and Applications written by Xu Guangxian and published by Elsevier. This book was released on 2013-10-22 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Frontiers in Rare Earth Science and Applications, Volume II documents the proceedings of the International Conference on Rare Earth Development and Applications held in Beijing on September 10-14, 1985. This compilation discusses quenching and sensitization of rare earth luminescence, magnetic properties of rare earth intermetallics, and microcapsulated rare earth-nickel hydride-forming materials. The effect of rare earth on the quality and properties of hot-rolled steel strips and role of yttrium in heavy section spheroidal graphite cast iron are also elaborated. This book likewise covers the application of scandium oxide in an electron emission material and study on the effect of rare earth elements on the yield of wheat. This publication is beneficial to researchers and scientists conducting work in the field of earth science.
Author : Volkmar Dierolf
Publisher : Woodhead Publishing
ISBN 13 : 008100060X
Total Pages : 472 pages
Book Rating : 4.0/5 (81 download)
Download or read book Rare Earth and Transition Metal Doping of Semiconductor Materials written by Volkmar Dierolf and published by Woodhead Publishing. This book was released on 2016-01-23 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare Earth and Transition Metal Doping of Semiconductor Material explores traditional semiconductor devices that are based on control of the electron's electric charge. This book looks at the semiconductor materials used for spintronics applications, in particular focusing on wide band-gap semiconductors doped with transition metals and rare earths. These materials are of particular commercial interest because their spin can be controlled at room temperature, a clear opposition to the most previous research on Gallium Arsenide, which allowed for control of spins at supercold temperatures. Part One of the book explains the theory of magnetism in semiconductors, while Part Two covers the growth of semiconductors for spintronics. Finally, Part Three looks at the characterization and properties of semiconductors for spintronics, with Part Four exploring the devices and the future direction of spintronics. - Examines materials which are of commercial interest for producing smaller, faster, and more power-efficient computers and other devices - Analyzes the theory behind magnetism in semiconductors and the growth of semiconductors for spintronics - Details the properties of semiconductors for spintronics
Author : Brian G. Wybourne
Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.3/5 (91 download)
Download or read book Spectroscopic Properties of Rare Earths written by Brian G. Wybourne and published by . This book was released on 1965 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ilya Prigogine
Publisher :
ISBN 13 :
Total Pages : 420 pages
Book Rating : 4.3/5 (91 download)
Download or read book Advances in Chemical Physics written by Ilya Prigogine and published by . This book was released on 1958 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
