Download or read book Infrared Absorption of Excited Chromium Ions in Crystals written by Gary King Klauminzer and published by . This book was released on 1970 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Interaction of Chromium Ions in Ruby Crystals written by Richard C. Powell and published by . This book was released on 1966 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absorption, excitation, continuous fluorescence, and pulse fluorescence measurements were made on ruby samples with 0.94% and 2.1% Cr+3 in the temperature range from 4.2K up to 700K. The widths, positions, intensities, and lifetimes of the R and N fluorescence lines were determined at numerous temperatures. The results for the temperature dependence of the linewidths are explained in terms of microscopic strains, Raman scattering of phonons by the impurity ions, and direct phonon processes. The results for the lineshifts with temperature are due to the absorption and emission of virtual phonons. The observed lifetimes of the R and N lines coincide in the temperature range where the systems are thermalized and the observed decays are pure exponentials. At temperatures where the systems are decoupled, an initial rise in fluorescence is observed at the N lines. The subsequent decay has the lifetime of the R lines for a 0.94% sample and the lifetime of the N lines for a 2.1% sample. These results are also explained in terms of energy transfer from single ions to pairs. The effects of reabsorption on the fluorescence spectrum are also discussed. (Author).

Download or read book The Interaction of Chromium Ions in Ruby Crystals written by Richard Conger Powell and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absorption, excitation, continuous fluorescence, and pulse fluorescence measurements were made on ruby samples with 0.94% and 2.1% Cr+3 in the temperature range from 4.2K up to 700K. The widths, positions, intensities, and lifetimes of the R and N fluorescence lines were determined at numerous temperatures. The results for the temperature dependence of the linewidths are explained in terms of microscopic strains, Raman scattering of phonons by the impurity ions, and direct phonon processes. The results for the lineshifts with temperature are due to the absorption and emission of virtual phonons. The observed lifetimes of the R and N lines coincide in the temperature range where the systems are thermalized and the observed decays are pure exponentials. At temperatures where the systems are decoupled, an initial rise in fluorescence is observed at the N lines. The subsequent decay has the lifetime of the R lines for a 0.94% sample and the lifetime of the N lines for a 2.1% sample. These results are also explained in terms of energy transfer from single ions to pairs. The effects of reabsorption on the fluorescence spectrum are also discussed. (Author)

Download or read book Optical Properties of 3d Ions in Crystals written by Nicolae M. Avram and published by Springer Science & Business Media. This book was released on 2013-05-13 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Optical Properties of 3d-Ions in Crystals: Spectroscopy and Crystal Field Analysis" discusses spectral, vibronic and magnetic properties of 3d-ions in a wide range of crystals, used as active media for solid state lasers and potential candidates for this role. Crystal field calculations (including first-principles calculations of energy levels and absorption spectra) and their comparison with experimental spectra, the Jahn-Teller effect, analysis of vibronic spectra, materials science applications are systematically presented. The book is intended for researchers and graduate students in crystal spectroscopy, materials science and optical applications. Dr. N.M. Avram is an Emeritus Professor at the Physics Department, West University of Timisoara, Romania; Dr. M.G. Brik is a Professor at the Institute of Physics, University of Tartu, Estonia.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mid Infrared Coherent Sources and Applications written by Majid Ebrahim-Zadeh and published by Springer Science & Business Media. This book was released on 2008-01-02 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering fundamental principles and the state of the art, this is a collection of reviews from experts in mid-infrared (mid-IR) coherent sources. Among the sources covered are optical parametric oscillators, difference frequency generators, and the most recent broadband crystalline, quantum cascade, and fiber lasers. The authors show how advances in mid-IR science and technology make these sources indispensable for a variety of applications.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Introduction to the Physics and Techniques of Remote Sensing written by Charles Elachi and published by John Wiley & Sons. This book was released on 2021-03-23 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: INTRODUCTION TO THE PHYSICS AND TECHNIQUES OF REMOTE SENSING DISCOVER CUTTING EDGE THEORY AND APPLICATIONS OF MODERN REMOTE SENSING IN GEOLOGY, OCEANOGRAPHY, ATMOSPHERIC SCIENCE, IONOSPHERIC STUDIES, AND MORE The thoroughly revised third edition of the Introduction to the Physics and Techniques of Remote Sensing delivers a comprehensive update to the authoritative textbook, offering readers new sections on radar interferometry, radar stereo, and planetary radar. It explores new techniques in imaging spectroscopy and large optics used in Earth orbiting, planetary, and astrophysics missions. It also describes remote sensing instruments on, as well as data acquired with, the most recent Earth and space missions. Readers will benefit from the brand new and up-to-date concept examples and full-color photography, 50% of which is new to the series. You’ll learn about the basic physics of wave/matter interactions, techniques of remote sensing across the electromagnetic spectrum (from ultraviolet to microwave), and the concepts behind the remote sensing techniques used today and those planned for the future. The book also discusses the applications of remote sensing for a wide variety of earth and planetary atmosphere and surface sciences, like geology, oceanography, resource observation, atmospheric sciences, and ionospheric studies. This new edition also incorporates: A fulsome introduction to the nature and properties of electromagnetic waves An exploration of sensing solid surfaces in the visible and near infrared spectrums, as well as thermal infrared, microwave, and radio frequencies A treatment of ocean surface sensing, including ocean surface imaging and the mapping of ocean topography A discussion of the basic principles of atmospheric sensing and radiative transfer, including the radiative transfer equation Perfect for senior undergraduate and graduate students in the field of remote sensing instrument development, data analysis, and data utilization, Introduction to the Physics and Techniques of Remote Sensing will also earn a place in the libraries of students, faculty, researchers, engineers, and practitioners in fields like aerospace, electrical engineering, and astronomy.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Reports written by and published by . This book was released on 1962 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Far Infrared Spectroscopy of Ions in Crystals written by Edwin Donald Nelson and published by . This book was released on 1966 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of the National Bureau of Standards Catalog written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of National Bureau of Standards Publications 1966 1976 pt 1 2 Key word index written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wide Gap Luminescent Materials Theory and Applications written by Stanley R. Rotman and published by Springer Science & Business Media. This book was released on 1996-12-31 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researches will benefit from the thorough coverage while graduate students will find this book to be an accessible introduction to the field.

Download or read book Catalog of National Bureau of Standards Publications 1966 1976 written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics for Scientists and Engineers written by Paul A. Tipler and published by Macmillan. This book was released on 2007-05 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sixth Edition of Physics for Scientists and Engineers offers a completely integrated text and media solution that will help students learn most effectively and will enable professors to customize their classrooms so that they teach most efficiently. The text includes a new strategic problem-solving approach, an integrated Math Tutorial, and new tools to improve conceptual understanding. To simplify the review and use of the text, Physics for Scientists and Engineers is available in these versions: Volume 1 Mechanics/Oscillations and Waves/Thermodynamics (Chapters 1-20, R) 1-4292-0132-0 Volume 2 Electricity and Magnetism/Light (Chapters 21-33) 1-4292-0133-9 Volume 3 Elementary Modern Physics (Chapters 34-41) 1-4292-0134-7 Standard Version (Chapters 1-33, R) 1-4292-0124-X Extended Version (Chapters 1-41, R) 0-7167-8964-7