Download or read book Line Absorption Spectra of Rare Earth Ions in Crystals written by Edward Joseph Meehan and published by . This book was released on 1936 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopy of Crystals Containing Rare Earth Ions written by A.A. Kaplyanskii and published by Elsevier. This book was released on 2012-12-02 with total page 767 pages. Available in PDF, EPUB and Kindle. Book excerpt: ``Spectroscopy of Crystals Containing Rare Earth Ions'' contains chapters on some key problems selected from a broad range of spectroscopic studies of RE-activated solids including both crystalline and glassy materials. Progress in crystal field theory is surveyed, an area which is basic to our understanding of the energy levels. The treatment of dynamical properties includes studies of coherence phenomena in isolated ions, energy transfer between ions and co-operative phenomena associated with ion-ion and ion-lattice interactions. In addition, the role of electron spins and nuclear spins is studied by light scattering and double resonance techniques. The presence of inhomogeneous broadening of spectral lines is observed and studied in many contexts, leading to new insights into general problems of the disordered state. Considerable attention is devoted to describing new experimental techniques whose development is of prime importance for progress in the spectroscopy of RE-activated solids. Many of these rely on the development and application of tunable lasers. At the moment this is a very active field of spectroscopy with more exciting developments likely to occur in the future.
Download or read book Optical Spectra of Transparent Rare Earth Compounds written by Stefan Hüfner and published by . This book was released on 1978 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Spectra of Transparent Rare Earth Compounds ...
Download or read book Spectra and Energy Levels of Rare Earth Ions in Crystals written by Gerhard Heinrich Dieke and published by . This book was released on 1968 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Absorption Spectra of Transuranic Salts in Crystals written by Simon Freed and published by . This book was released on 1948 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1973 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to the Optical Spectroscopy of Inorganic Solids written by Jose Solé and published by John Wiley & Sons. This book was released on 2005-06-10 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide to spectroscopy and inorganic materials meets the demand from academia and the science community for an introductory text that introduces the different optical spectroscopic techniques, used in many laboratories, for material characterisation. Treats the most basic aspects to be introduced into the field of optical spectroscopy of inorganic materials, enabling a student to interpret simple optical (absorption, reflectivity, emission and scattering) spectra Contains simple, illustrative examples and solved exercises Covers the theory, instrumentation and applications of spectroscopy for the characterisation of inorganic materials, including lasers, phosphors and optical materials such as photonics This is an ideal beginner’s guide for students with some previous knowledge in quantum mechanics and optics, as well as a reference source for professionals or researchers in materials science, especially the growing field of optical materials.
Download or read book Spectra and Energy Levels of Rare Earth Ions in Crystals written by Gerhard Heinrich Dieke and published by . This book was released on 1968 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OAR written by and published by . This book was released on 1967 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopy of Solid state Laser and Luminescent Materials written by Zundu Luo and published by Nova Publishers. This book was released on 2007 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-state laser and luminescent materials activated by rare-earth or transition metals ions are widely used for solid-state lasers, luminescent lamps, flat displays, optical fibre communication systems, and other photonic devices. The unique solid-state electronic properties enable the activators in solids to emit photons efficiently in visible and IR regions. The rapid advances in both materials science and optoelectronics, particularly, the development of new methods of material synthesis and device fabrication, have been stimulating the growing interests in the deep insights of spectroscopic properties of solid-state laser and luminescent materials. This book brings together essential and practical knowledge of spectroscopic physics. This includes, atomic spectroscopy, mathematical theory, rare earth ions in materials, light emission and absorption, spectral properties, non-radiative transitions and energy migration.
Download or read book Low Temperature Physics II K ltephysik II written by S. Flügge and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: 71 For a given value of I the field is independent of the geometrical composition of the coil inside the winding space. The actual number of turns and the cross section of the conductors is entirely determined by the impedance of the power supply to which the magnet should be adapted. In the case of low impedance (high current and low voltage) few turns of thick metal should be used. In the case of high impedance (low current and high voltage) many turns of thin material are needed. High impedance coils are made of square wire or flat strip wound into layers or "pancakes" 1. A nice system for low impedance coils was deve loped by BITTER. The turns of his magnets consist of flat copper discs separated by thin insulating sheets and joined together at their edges. In this type of coil the current density is higher near the axis than at the exterior, resulting into a higher value for G (see above). For the details of the construction we refer to the original papers 2, 3. If the power is dissipated at a low voltage the cooling may be achieved with the help of water. Distilled water should be preferred over mains' water in order to prevent the magnet from corrosion. In the case of a high voltage coil some non-inflammable organic fluid should be used. A low viscosity and a large specific heat are advantageous.
Download or read book Rare Earth Doped Fiber Lasers and Amplifiers Revised and Expanded written by Michel J.F. Digonnet and published by CRC Press. This book was released on 2001-05-31 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of the theories, operating characteristics, and current technology of main fiber laser and amplifier devices based on rare-earth-doped silica and fluorozirconate fibers. It describes the principles, designs, and properties of the erbium-doped fiber amplifier and its role as the cornerstone component in optical communication systems. This second edition contains new and revised material reflecting major developments in academia and industry.
Download or read book Heat Capacity and Magnetic Susceptibility of Thulium Ethylsulfate written by Bernard C. Gerstein and published by . This book was released on 1960 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics of Laser Crystals written by Jean-Claude Krupa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physics of laser crystals has been constantly developing since the invention of the laser in 1960. Nowadays, more than 1500 wide-band-gap and semiconductors crystals are suitable for the production of the laser effect. Different laser devices are widely used in science, medicine and communication systems according to the progress achieved in the development of laser crystal physics. Scintillators for radiation detection also gained benefit from these developments. Most of the optically active materials offer laser radiations within the 500 to 3000 nm region with various quantum efficiency which fit the usual applications. However, new crystals for laser emissions are needed either in the blue, UV and VUV - region or far IR- region, especially for medicine, computer microchip production and for undiscovered practical uses. Scientific problems of the growth and properties of laser crystals are discussed in numerous books and scientific journals by many scientists working in the field. Therefore, we thought that joint discussions of the scientific and technical problems in laser physics will be useful for further developments in this area. We have proposed to held a Workshop on Physics of Laser Crystals for attempting to induce additional advances especially in solid state spectroscopy. This NATO Advanced Research Workshop (ARW) was hold in Kharkiv • Stary Saltov th nd (Ukraine) on august 26 - September 2 , 2002, and was mainly devoted to the consideration 0 f modem approaches and Iast results in physics of laser crystals.
Download or read book NBS Monograph written by United States. National Bureau of Standards and published by . This book was released on 1959 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Defect Structures written by H. C. Freyhardt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polytypic crystals of semiconductors, dielectrics and magnetic materials attract an increasing attention in science and technology. On one hand, the phenomenon of polyty pism is one of the fundamental problems of solid-state physics; its solution would make it possible to elucidate- the problem of the interconnection of different structures and intraatomic forces acting in crystals. On the other hand, the polytypic difference in crystals is most strongly expressed in electro-physical properties, which makes their application promising, mainly in semiconductor electronics. Thus, the difficulties of pro ducing modulated structures in polytypic crystals can be overcome since these crystals form a class of one-dimensional natural superlattices. At present it has become clear that polytypism in crystals and compounds is the rule rather than an exception and it is determined by the conditions of their synthesis. This phenomenon seems to be rather widespread in nature and fundamental for crystal forma tion. H polytypism was recently thought to be but a specific structural feature of a few substances such as SiC, ZnS, CdI , etc. , by now this phenomenon has been discovered in 2 v an increasing range of crystalline substances, for example, in silicon, diamond, AIIIB , VI AIIB , AIBVII compounds, in ternary semiconducting compounds, metals, silicates, perovskites, mica, organic crystals. The more accurately the structural studies are per formed, the greater is the number of crystals of various substances found to exhibit the phenomenon of polytypism. Recently, excellent surveys have systematized our knowledge of polytypism.
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.
