Interactions of Coherent Optical Radiation with Solids PDF Download
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Author: R. Braunstein
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
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Book Description
The study of double-photon absorption, harmonic generation in semiconductors, and the frequency tuning of injection lasers by uniaxial stress are reported. Observations have been made of the two-photon excitation of an electron from the valence to the conduction band in CdS. The radiative recombination emission from exciton and impurity levels subsequent to the simultaneous absorption of two quanta was observed as a function of laser intensity and compared to the emission excited by single-quanta absorption for photons. The frequency of a GaAs laser can be readily tuned by the application of uniaxial stress. Analysis of the frequency changes with stress of diodes prepared in different fashions indicates that different emission processes may be taking place. (Author).
Author: R. Braunstein
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
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Book Description
The study of double-photon absorption, harmonic generation in semiconductors, and the frequency tuning of injection lasers by uniaxial stress are reported. Observations have been made of the two-photon excitation of an electron from the valence to the conduction band in CdS. The radiative recombination emission from exciton and impurity levels subsequent to the simultaneous absorption of two quanta was observed as a function of laser intensity and compared to the emission excited by single-quanta absorption for photons. The frequency of a GaAs laser can be readily tuned by the application of uniaxial stress. Analysis of the frequency changes with stress of diodes prepared in different fashions indicates that different emission processes may be taking place. (Author).
Author:
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ISBN:
Category :
Languages : en
Pages :
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Author: Max Garbuny
Publisher:
ISBN:
Category : Physical optics
Languages : en
Pages : 488
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Book Description
Fundamentals of radiation and its interaction with matter -- Emission and absorption of heat radiation -- Emission and absorption of nearly monochromatic radiation -- Spectra of atoms, molecules and solids -- Phenomena of propagation -- Interactions of coherent radiation with matter -- Secondary effects of light and processes of detection.
Author: D. Dragoman
Publisher: Springer Science & Business Media
ISBN: 3662048701
Category : Technology & Engineering
Languages : en
Pages : 462
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Book Description
Gives a comprehensive and coherent account of the basic methods to characterize a solid through its interaction with an electromagnetic field.
Author:
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Category :
Languages : en
Pages : 570
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Author:
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ISBN:
Category :
Languages : en
Pages : 43
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Book Description
Avalanche upconversion dynamics and associated nonlinear optical response was also reported for the first time in Tm:YALO crystals at room temperature. The avalanche mechanism involves a cooperative down conversion (cross relaxation) step and is a promising method of pumping rare earth lasers at entirely new (diode compatible) wavelengths, corresponding to excited state absorptions rather than ground state absorptions. Quantum theory describing the threshold for photo-darkening and the role of energy migration in avalanches was developed, and semi quantitative agreement obtained with preliminary measurements of nonlinear susceptibilities. Cooperative dynamics in general, and avalanche dynamics in particular, were shown to furnish a promising new mechanism not only for solid state lasers but for nonlinear optical interactions as well, opening the door to practical signal processing and switching applications exploiting the low intensity thresholds of avalanche processes.
Author: Ray E. Bolz
Publisher: CRC Press
ISBN: 1351838423
Category : Technology & Engineering
Languages : en
Pages : 1184
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Book Description
New tables in this edition cover lasers, radiation, cryogenics, ultra-sonics, semi-conductors, high-vacuum techniques, eutectic alloys, and organic and inorganic surface coating. Another major addition is expansion of the sections on engineering materials and compos-ites, with detailed indexing by name, class and usage. The special Index of Properties allows ready comparisons with respect to single property, whether physical, chemical, electrical, radiant, mechani-cal, or thermal. The user of this book is assisted by a comprehensive index, by cross references and by numerically keyed subject headings at the top of each page. Each table is self-explanatory, with units, abbreviations, and symbols clearly defined and tabular material subdivided for easy reading.
Author: Baldassare di Bartolo
Publisher: Springer Science & Business Media
ISBN: 146153044X
Category : Science
Languages : en
Pages : 749
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Book Description
This book presents an account of the course "Optical Properties of Excited States in Solids" held in Erice, Italy, from June 16 to 3D, 1991. This meeting was organized by the International School of Atomic and Molecular Spectroscopy of the "Ettore Majorana" Centre for Scientific Culture. The purpose of this course was to present physical models, mathematical formalisms and experimental techniques relevant to the optical properties of excited states in solids. Some active physical species, such as ions or radicals, could survive indefinitely if they were completely 'isolated in space. Other active species, such as excited molecular and solid-state systems, are inherently unstable, even in isolation, due to the spontaneous mechanisms that may convert their excitation energies into radiation or heat. Physical parameters that may be used to characterize these excited systems are the localization or delocalization, and the coherence or incoherence, of their state excitations. In solids the excited states, whether they are localized (as for impurities in insulators) or delocalized (as they may occur in semiconductors), are relevant in several regards. Their de-excitation is extremely sensitive to the nature of the excitations of the systems, and a study of the de-excitation processes can yield a variety of information. For example, the excited states may represent the initial condition of the onset of such processes as Stokes-shifted emission, hot luminescence, symmetry-dependent Jahn-Teller and scattering processes, tunneling processes, energy transfer to like and unlike centers, superradiance, coherent radiation, and excited state absorption.
Author:
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Category : Military research
Languages : en
Pages : 572
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Book Description
Author: Stefan P. Hau-Riege
Publisher: John Wiley & Sons
ISBN: 3527636382
Category : Technology & Engineering
Languages : en
Pages : 284
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Book Description
Filling the need for a book bridging the effect of matter on X-ray radiation and the interaction of x-rays with plasmas, this monograph provides comprehensive coverage of the topic. As such, it presents and explains such powerful new X-ray sources as X-ray free-electron lasers, as well as short pulse interactions with solids, clusters, molecules, and plasmas, and X-ray matter interactions as a diagnostic tool. Equally useful for researchers and practitioners working in the field.
