Spectroscopic Properties of Rare Earths

Spectroscopic Properties of Rare Earths PDF Author: Brian G. Wybourne
Publisher:
ISBN:
Category : Earths, Rare
Languages : en
Pages : 256

Get Book Here

Book Description

Spectroscopic Properties of Rare Earths

Spectroscopic Properties of Rare Earths PDF Author: Brian G. Wybourne
Publisher:
ISBN:
Category : Earths, Rare
Languages : en
Pages : 256

Get Book Here

Book Description


Spectroscopic Properties of Rare Earths in Optical Materials

Spectroscopic Properties of Rare Earths in Optical Materials PDF Author: Guokui Liu
Publisher: Springer Science & Business Media
ISBN: 3540282092
Category : Science
Languages : en
Pages : 567

Get Book Here

Book Description
Aimed at researchers and graduate students, this book provides up-to-date information about the electronic interactions that impact the optical properties of rare earth ions in solids. Its goal is to establish a connection between fundamental principles and the materials properties of rare-earth activated luminescent and laser optical materials. The theoretical survey and introduction to spectroscopic properties covers electronic energy level structure, intensities of optical transitions, ion-phonon interactions, line broadening, and energy transfer and up-conversion. An important aspect of the book lies in its deep and detailed discussions of materials properties and the potential of new applications such as optical storage, information processing, nanophotonics, and molecular probes that have been identified in recent experimental studies. This volume will be a valuable reference book on advanced topics of rare earth spectroscopy and materials science.

Rare Earth Materials

Rare Earth Materials PDF Author: A.R. Jha
Publisher: CRC Press
ISBN: 1466564032
Category : Science
Languages : en
Pages : 366

Get Book Here

Book Description
Recent studies indicate that China accounts for about 96 percent of the world's supply of rare earth materials (REMs). With REMs becoming increasingly important for a growing number of high-tech applications, appropriate action must be taken to mitigate the effects of a shortage of critical REMs in defense systems and components.Bringing together i

Spectroscopic Properties of Rare Earths in Optical Materials

Spectroscopic Properties of Rare Earths in Optical Materials PDF Author: Guokui Liu
Publisher:
ISBN: 9787302074090
Category : Optical materials
Languages : en
Pages : 550

Get Book Here

Book Description


Extractive Metallurgy of Niobium

Extractive Metallurgy of Niobium PDF Author: A.K. Suri
Publisher: Routledge
ISBN: 1351448978
Category : Science
Languages : en
Pages : 272

Get Book Here

Book Description
The growth and development witnessed today in modern science, engineering, and technology owes a heavy debt to the rare, refractory, and reactive metals group, of which niobium is a member. Extractive Metallurgy of Niobium presents a vivid account of the metal through its comprehensive discussions of properties and applications, resources and resource processing, chemical processing and compound preparation, metal extraction, and refining and consolidation. Typical flow sheets adopted in some leading niobium-producing countries for the beneficiation of various niobium sources are presented, and various chemical processes for producing pure forms of niobium intermediates such as chloride, fluoride, and oxide are discussed. The book also explains how to liberate the metal from its intermediates and describes the physico-chemical principles involved. It is an excellent reference for chemical metallurgists, hydrometallurgists, extraction and process metallurgists, and minerals processors. It is also valuable to a wide variety of scientists, engineers, technologists, and students interested in the topic.

Spectroscopy of Solid-state Laser and Luminescent Materials

Spectroscopy of Solid-state Laser and Luminescent Materials PDF Author: Zundu Luo
Publisher: Nova Publishers
ISBN: 9781600213267
Category : Science
Languages : en
Pages : 368

Get Book Here

Book Description
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.

Handbook on the Physics and Chemistry of Rare Earths

Handbook on the Physics and Chemistry of Rare Earths PDF Author:
Publisher: Elsevier
ISBN: 008054858X
Category : Science
Languages : en
Pages : 559

Get Book Here

Book Description
Optical spectroscopy has been instrumental in the discovery of many lanthanide elements. In return, these elements have always played a prominent role in lighting devices and light conversion technologies (Auer mantles, incandescent lamps, lasers, cathode-ray and plasma displays). They are also presently used in highly sensitive luminescent bio-analyses and cell imaging. This volume of the Handbook on the Physics and Chemistry of Rare Earths is entirely devoted to the photophysical properties of these elements. It is dedicated to the late Professor William T (Bill) Carnall who has pioneered the understanding of lanthanide spectra in the 1960's and starts with a Dedication to this scientist. The following five chapters describe various aspects of lanthanide spectroscopy and its applications. Chapters 231 presents state-of-the-art theoretical calculations of lanthanide energy levels and transition intensities. It is followed by a review (Chapter 232) on both theoretical and experimental aspects of f-d transitions, a less well known field of lanthanide spectroscopy, yet very important for the design of new optical materials. Chapter 233 describes how confinement effects act on the photophysical properties of lanthanides when they are inserted into nanomaterials, including nanoparticles, nanosheets, nanowires, nanotubes, insulating and semiconductor nanocrystals. The use of lanthanide chelates for biomedical analyses is presented in Chapter 234; long lifetimes of the excited states of lanthanide ions allow the use of time-resolved spectroscopy, which leads to highly sensitive analyses devoid of background effect from the autofluorescence of the samples. The last review (Chapter 235) provides a comprehensive survey of near-infrared (NIR) emitting molecular probes and devices, spanning an all range of compounds, from simple chelates to macrocyclic complexes, heterometallic functional edifices, coordination polymers and other extended structures. Applications ranging from telecommunications to light-emitting diodes and biomedical analyses are assessed.- Provides a comprehensive look at optical spectroscopy and its applications- A volume in the continuing authoritative series which deals with the chemistry, materials science, physics and technology of the rare earth elements

Spectroscopic Properties of Rare Earths

Spectroscopic Properties of Rare Earths PDF Author: Brian G. Wybourne
Publisher:
ISBN:
Category : Earths, Rare
Languages : en
Pages : 256

Get Book Here

Book Description


Magnetic Properties of Rare Earth Metals

Magnetic Properties of Rare Earth Metals PDF Author: R. Elliott
Publisher: Springer Science & Business Media
ISBN: 1475756917
Category : Technology & Engineering
Languages : en
Pages : 430

Get Book Here

Book Description
The rare earths have a unique place among the elements. Although very much alike chemically and in most phy~ical properties they each have very different and striking magnetic properties. The reason, of course, lies in their 4f electrons which determine the magnetic properties but have little effect on other chemical and physical behaviour. Although they are not rare, some indeed are among the more common heavy elements in the earth's crust, the difficulty of separation has meant that their intricate magnetic properties have only recently been unravelled. Now, however, the general pattern of their magnetism is well charted and the underlying theory is well understood. Both are thoroughly summarised in this book. It provides an excellent example of the kind of extensive synthesis which is possible with modem solid state physics. it represents only a high plateau in the ascent to complete understanding. But It will become clear to the reader that while the overall position is satisfactory there are many details still to be elucidated experimentally and much to be done theoretically before all the underlying forces are identified and estimated from a priori calculations. It is hoped that the book will provide a useful stimulus in this direction. It should also be of use to those who are interested in related disciplines, for example the rare earth compounds, or the transition metals. In addition rare earths promise to be important technologically as alloy constituents.

Handbook on the Physics and Chemistry of Rare Earths

Handbook on the Physics and Chemistry of Rare Earths PDF Author:
Publisher: North Holland
ISBN: 9780444634832
Category : Science
Languages : en
Pages : 0

Get Book Here

Book Description
Handbook on the Physics and Chemistry of Rare Earths is a continuous series of books covering all aspects of rare earth science, including chemistry, life sciences, materials science, and physics. The main emphasis of the handbook is on rare earth elements [Sc, Y and the lanthanides (La through Lu)], but whenever relevant, information is also included on the closely related actinide elements. The individual chapters are comprehensive, broad, up-to-date, critical reviews written by highly experienced invited experts. The series, which was started in 1978 by Professor Karl A. Gschneidner Jr., combines and integrates both the fundamentals and applications of these elements, now publishing two volumes a year.