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Fluorenscence Properties Of Rare Earth Doped Sol Gel Silica Glasses
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Book Synopsis Fluorenscence Properties of Rare Earth Doped Sol-gel Silica Glasses by : Brandon T. Stone
Download or read book Fluorenscence Properties of Rare Earth Doped Sol-gel Silica Glasses written by Brandon T. Stone and published by . This book was released on 1997 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fluorescence Properties of Rare-Earth-Doped Sol-Gel Glasses by : Helena Cristina Vasconcelos
Download or read book Fluorescence Properties of Rare-Earth-Doped Sol-Gel Glasses written by Helena Cristina Vasconcelos and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Glasses may be prepared by sol-gel processing over a wide range of compositions and thick multilayer deposits may be used as waveguides for integrated optics. Doping these layers with rare-earth (RE) ions enables the fabrication of active devices for optical amplifiers; the incorporation of these ions into nanocrystallites offers possibilities for increased dopant concentration without fluorescence quenching, improved spectroscopic performance and high quantum yields. Rare-earth (RE) ions such as erbium (Er3+), ytterbium (Yb3+), neodymium (Nd3+), thulium (Tm3+), holmium (Ho3+) and praseodymium (Pr3+) have been widely used in optical applications and cover a range of wavelengths ranging from UV-visible to the near infrared. This chapter includes basic principles of fluorescence in RE doped glasses, fluorescence lifetimes, quantum yields and Judd-Ofelt analysis. A few information is given about the preparation and characterization of glasses, thin films and glass-ceramics (nanocrystallites embedded in glass matrix) prepared by sol-gel processing. The growth of nanocrystals in glassy sol-gel films through suitable heat treatments can avoid the influence of high phonon energy of silica glasses. The characterization of such materials can be evaluated by optical techniques, namely UV-Visible, FTIR, among other additional techniques that include Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) and Atomic Force Microscopy (AFM).
Book Synopsis Physics and Chemistry of Rare-Earth Ions Doped Glasses by : Sooraj Hussain Nandyala
Download or read book Physics and Chemistry of Rare-Earth Ions Doped Glasses written by Sooraj Hussain Nandyala and published by Trans Tech Publications Ltd. This book was released on 2008-08-30 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this work is to review the latest developments in glass science and technology. It presents various types of glass, of both academic and technological importance, in which the host is doped with rare-earth ions.
Book Synopsis Sol-gel Synthesis of Fluoride Glasses and Thin Films by : Matthew J. Dejneka
Download or read book Sol-gel Synthesis of Fluoride Glasses and Thin Films written by Matthew J. Dejneka and published by . This book was released on 1995 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rare Earth Doped Sol-gel Glasses and Films by : Bettina Wilhelm
Download or read book Rare Earth Doped Sol-gel Glasses and Films written by Bettina Wilhelm and published by . This book was released on 2002 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Properties of Rare-earth-doped Germanate Glasses by : Herbert G. Lipson
Download or read book Optical Properties of Rare-earth-doped Germanate Glasses written by Herbert G. Lipson and published by . This book was released on 1970 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absorption spectra were used to determine the effect of modifier ions on the splitting and relative intensity of neodymium spectral terms in germanate and other glasses. The behavior of spectral components is related to the degree of inhomogeneous broadening and changes in the site symmetry of the neodymium ion. A similarity between the wavelength position of neodymium term levels and their total width in glasses and crystalline neodymium oxide has been observed. Fluorescence spectra for neodymium, erbium, and holmium ions in sodium germanate glass are reported and the absorption lines involved in excitation with both lamp and laser sources discussed. The lines of an argon-ion laser are found to be more convenient and powerful sources for the excitation of rare earth ion fluorescence than mercury vapor or tungsten lamp sources. The energy level diagram of neodymium in sodium germanate glass was determined from absorption and fluorescence peak spectra. A relationship between the strength of infrared absorption bands involved in cross-relaxation processes and the extent of neodymium fluorescence quenching was observed. Fluorescence conversion efficiencies comparable or higher than those of commercial laser glasses are found for neodymium in sodium germanate glass by both laser and lamp excitation methods. Germanate glasses show good potential as laser hosts for a number of rare earth ions. (Author).
Book Synopsis Nano-Glass Ceramics by : Vahak Marghussian
Download or read book Nano-Glass Ceramics written by Vahak Marghussian and published by William Andrew. This book was released on 2015-01-06 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nano-Glass Ceramics: Processing, Properties and Applications provides comprehensive coverage of synthesis and processing methods, properties and applications of the most important types of nano-glass ceramics, from a unique material science perspective. Emphasis is placed on the experimental and practical aspects of the subject while covering the theoretical and practical aspects and presenting, numerous examples and details of experimental methods. In the discussing the many varied applications of nano-glass ceramics, consideration is given to both, the fields of applications in which the materials are firmly established and the fields where great promise exists for their future exploitation. The methods of investigation adopted by researchers in the various stages of synthesis, nucleation, processing and characterization of glass ceramics are discussed with a focus on the more novel methods and the state of the art in developing nanostructured glass ceramics. Comprehensive coverage of nanostructured glass ceramics with a materials science approach. The first book of this kind Applications-oriented approach, covering current and future applications in numerous fields such as Biomedicine and Electronics Explains the correlations between synthesis parameters, properties and applications guiding R&D researchers and engineers to choose the right material and increase cost-effectiveness
Book Synopsis Optical Properties of Doped Sol-gel Silica Glasses by : T. A. King
Download or read book Optical Properties of Doped Sol-gel Silica Glasses written by T. A. King and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of sol-gel science and technology. 2. Characterization and properties of sol-gel materials and products by : Sumio Sakka
Download or read book Handbook of sol-gel science and technology. 2. Characterization and properties of sol-gel materials and products written by Sumio Sakka and published by Springer Science & Business Media. This book was released on 2004 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Applications in Sol-Gel Synthesis by : Usha Chandra
Download or read book Recent Applications in Sol-Gel Synthesis written by Usha Chandra and published by BoD – Books on Demand. This book was released on 2017-07-05 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Versatility, extended compositional ranges, better homogeneity, lesser energy consumption, and requirement of nonexpensive equipments have boosted the use of sol-gel process on top of the popularity in the synthesis of nanosystems. The sol-gel technique has not only revolutionized oxide ceramics industry and/or material science but has also extended widely into multidimensional applications. The book Recent Applications in Sol-Gel Synthesis comprises 14 chapters that deal mainly with the application-oriented aspects of the technique. Sol-gel prepared metal oxide (MO) nanostructures like nanospheres, nanorods, nanoflakes, nanotubes, and nanoribbons have been employed in biomedical applications involving drug deliveries, mimicking of natural bone, and antimicrobial activities. The possibility of controlling grain size in aerogel and preparation of ultrahigh-temperature ceramic (UHTC)-based materials, fluorescent glasses, ultraviolet photosensors, and photocatalysts have been discussed in detail by the experts in the field. The usefulness of sol-gel materials as active GRIN, as textile finisher, and as leather modifier with water-repellent and oil-resistive properties would be an incentive for researchers keen to pursue the field.
Book Synopsis The Effect of Aluminum Codoping on Rare Earth Sol-gel Glasses by : Jeffrey P. Hutchinson
Download or read book The Effect of Aluminum Codoping on Rare Earth Sol-gel Glasses written by Jeffrey P. Hutchinson and published by . This book was released on 2007 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rare-earth-doped Devices II by : Seppo Honkanen
Download or read book Rare-earth-doped Devices II written by Seppo Honkanen and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Sol-Gel Science and Technology by : Lisa Klein
Download or read book Handbook of Sol-Gel Science and Technology written by Lisa Klein and published by Springer Nature. This book was released on 2018-05-31 with total page 3755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely updated and expanded second edition stands as a comprehensive knowledgebase on both the fundamentals and applications of this important materials processing method. The diverse, international team of contributing authors of this reference clarify in extensive detail properties and applications of sol-gel science and technology as it pertains to the production of substances, active and non-active, including optical, electronic, chemical, sensor, bio- and structural materials. Essential to a wide range of manufacturing industries, the compilation divides into the three complementary sections: Sol-Gel Processing, devoted to general aspects of processing and recently developed materials such as organic-inorganic hybrids, photonic crystals, ferroelectric coatings, and photocatalysts; Characterization of Sol-Gel Materials and Products, presenting contributions that highlight the notion that useful materials are only produced when characterization is tied to processing, such as determination of structure by NMR, in-situ characterization of the sol-gel reaction process, determination of microstructure of oxide gels, characterization of porous structure of gels by the surface measurements, and characterization of organic-inorganic hybrid; and Applications of Sol-Gel Technology, covering applications such as the sol-gel method used in processing of bulk silica glasses, bulk porous gels prepared by sol-gel method, application of sol-gel method to fabrication of glass and ceramic fibers, reflective and antireflective coating films, application of sol-gel method to formation of photocatalytic coating films, and application of sol-gel method to bioactive coating films. The comprehensive scope and integrated treatment of topics make this reference volume ideal for R&D scientists and engineers across a wide range of disciplines and professional interests.
Book Synopsis Sol-Gel Technologies for Glass Producers and Users by : Michel A Aegerter
Download or read book Sol-Gel Technologies for Glass Producers and Users written by Michel A Aegerter and published by Springer Science & Business Media. This book was released on 2004-10-29 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sol-Gel Techniques for Glass Producers and Users provides technological information, descriptions and characterizations of prototypes, or products already on the market, and illustrates advantages and disadvantages of the sol-gel process in comparison to other methods. The first chapter entitled "Wet Chemical Technology" gives a summary of the basic principles of the sol-gel chemistry. The most promising applications are related to coatings. Chapter 2 describes the various "Wet Chemical Coating Technologies" from glass cleaning to many deposition and post-coating treatment techniques. These include patterning of coatings through direct or indirect techniques which have became very important and for which the sol-gel processing is particularly well adapted. Chapter 3 entitled "Bulk Glass Technologies" reports on the preparation of special glasses for different applications. Chapter 4 entitled "Coatings and Materials Properties" describes the properties of the different coatings and the sol-gel materials, fibers and powders. The chapter also includes a section dedicated to the characterization techniques especially applied to sol-gel coatings and products.
Download or read book Rare-earth-doped Devices written by and published by . This book was released on 1998 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concise Encyclopedia of Composite Materials by : Andreas Mortensen
Download or read book Concise Encyclopedia of Composite Materials written by Andreas Mortensen and published by Elsevier. This book was released on 2006-12-08 with total page 989 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concise Encyclopedia of Composite Materials draws its material from the award-winning Encyclopedia of Materials: Science and Technology, and includes updates and revisions not available in the original set. This customized collection of articles provides a handy reference for materials scientists and engineers with an interest in composite materials made from polymers, metals, ceramics, carbon, biocomposites, nanocomposites, wood, cement, fibers, etc. Brings together articles from the Encyclopedia of Materials: Science & Technology that focus on the essentials of composite materials, including recent updates Every article has been commissioned and written by an internationally recognized expert and provides a concise overview of a particular aspect of the field Enables rapid reference; extensive bibliographies, cross-referencing and indexes guide the user to the most relevant reading in the primary literature Covers areas of active research, such as biomaterials and porous materials
Book Synopsis Optical Spectra and Chemical Bonding in Transition Metal Complexes by : Thomas Schönherr
Download or read book Optical Spectra and Chemical Bonding in Transition Metal Complexes written by Thomas Schönherr and published by Springer Science & Business Media. This book was released on 2004-09-30 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts