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Spectroscopic Considerations Of Chromium Doped Lithium Germanate As A Possible Laser Material
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Book Synopsis Spectroscopic Considerations of Chromium Doped Lithium Germanate as a Possible Laser Material by : Richard Conger Powell
Download or read book Spectroscopic Considerations of Chromium Doped Lithium Germanate as a Possible Laser Material written by Richard Conger Powell and published by . This book was released on 1968 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuous fluorescence, pulsed fluorescence, and excitation measurements were made on lithium germanate samples containing 0. 038, 0. 12, and 0. 18 percent chromium. The several sharp lines appearing in the fluorescence spectrum are attributed to chromium ions in nonequivalent lattice sites. It appears that these sites are filled randomly as chromium concentration is increased. The temperature dependence of the widths, positions, intensites, and lifetimes were investigated for the two most prominent sets of R lines associated with chromium in nonequivalent sites. These results are interpreted in terms of energy transfer between chromium ions in nonequivalent sites, which is efficient enough at high temperatures to allow thermal equilibrium to be established between the two florescent systems but which predicts pumping of the R system by the R' system at low temperatures. (Author).
Book Synopsis Spectroscopic Considerations of Chromium Doped Lithium Germanate as a Possible Laser Material by : Richard C. Powell
Download or read book Spectroscopic Considerations of Chromium Doped Lithium Germanate as a Possible Laser Material written by Richard C. Powell and published by . This book was released on 1968 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuous fluorescence, pulsed fluorescence, and excitation measurements were made on lithium germanate samples containing 0. 038, 0. 12, and 0. 18 percent chromium. The several sharp lines appearing in the fluorescence spectrum are attributed to chromium ions in nonequivalent lattice sites. It appears that these sites are filled randomly as chromium concentration is increased. The temperature dependence of the widths, positions, intensites, and lifetimes were investigated for the two most prominent sets of R lines associated with chromium in nonequivalent sites. These results are interpreted in terms of energy transfer between chromium ions in nonequivalent sites, which is efficient enough at high temperatures to allow thermal equilibrium to be established between the two florescent systems but which predicts pumping of the R system by the R' system at low temperatures. (Author).
Book Synopsis OAR Cumulative Index of Research Results by :
Download or read book OAR Cumulative Index of Research Results written by and published by . This book was released on 1967 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of AFCRL Publications from 1 July to 30 September 1968 by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Bibliography of AFCRL Publications from 1 July to 30 September 1968 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1968 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report on Research at AFCRL. by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Report on Research at AFCRL. written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1967 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Thermoluminescence to Chromium-doped Lithium Germanate by : Albert D. Johnson
Download or read book Applications of Thermoluminescence to Chromium-doped Lithium Germanate written by Albert D. Johnson and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several features of thermoluminescence from chromium-doped lithium germanate were explored. These included: thermoluminescence excitation and emission spectra, thermal activation energies, recombination kinetics, behavior of glow curves as a function of sample temperature-during-excitation, and thermal bleach after excitation. Strong thermoluminescence was obtained by exciting electrons to energies above the U- and Y-absorption bands, and very weak thermoluminescence by exciting to these bands. Thermoluminescence emission occurred in the same wavelength region as fluorescence. Activation energies ranged from 0.17 to 2.3 eV. Thermoluminescence was found to be a sensitive function of temperature-during-excitation; large increases in high-temperature peaks were accompanied by small decreases in low-temperature glow peaks. Thermal bleaching after excitation, however, left high temperature peaks unchanged, while low-temperature peaks were removed. (Author).
Book Synopsis Journal of Current Laser Abstracts by :
Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1968 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis OAR Index of Research Results by : United States. Air Force. Office of Aerospace Research
Download or read book OAR Index of Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1967 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government-wide Index to Federal Research & Development Reports by :
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1968 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Scientific and Industrial Reports by :
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1968 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1986 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Index written by and published by . This book was released on 1968 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research & Development Reports by :
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1968 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research and Development Reports Index by :
Download or read book U.S. Government Research and Development Reports Index written by and published by . This book was released on 1968 with total page 1492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1975-09-05 with total page 182 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 2676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
