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Author : David Desrocher (CAPT, USAF.)
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (132 download)
Download or read book Excited State Lifetime Measurements of Ytterbium in Indium Phosphide written by David Desrocher (CAPT, USAF.) and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Desrocher
Publisher :
ISBN 13 :
Total Pages : 81 pages
Book Rating : 4.:/5 (227 download)
Download or read book Excited State Lifetime Measurements of Ytterbium in Indium Phosphide written by David Desrocher and published by . This book was released on 1989 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AFIT Time Resolved Photoluminescence (TRPL) lab was disassembled, relocated and rebuilt with improvements to layout and performance. Excited state lifetime measurements of ytterbium implanted in indium phosphide were conducted using the new lab. Effects of sample temperature, rapid thermal annealing (RTA) time and RTA temperature on the lifetimes of the 1.002 microns Yb3+ line were examined. Lifetime measurements of Er, Pr and Tm in GaAs were also attempted. Ytterbium concentrations were 3 X 10 to the 13th power ions/sq. cm., implanted at an ion energy of 1 MeV in semi-insulating InP substrate. Sample temperatures ranged from 4.2-90K. Annealing times ranged from 1 to 25 seconds on samples annealed at 850 C. Annealing temperatures ranged from 400 to 850 C, with RTA times of 15 seconds. The excitation source was a nitrogen-pumped dye laser with primary wavelength at 580 nm. A germanium photodiode detector was selected to eliminate the long time constant associated with available S1 power supplies and to enable detection at the near infrared wavelengths of the other rare earths. Data acquisition was accomplished with a boxcar averager and a microcomputer equipped with acquisition hardware and software. Thermal quenching was clearly observed in lifetimes at increasing sample temperatures, most dramatically at above 50 C. The results would be very helpful in device fabrication/operation considerations, and some of the sample preparation parameters may be equally applicable for other RE doped III-V semi-conductors. Theses. (AW).
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ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (873 download)
Download or read book Experimental Investigation of Excited-State Lifetimes in Atomic Ytterbium written by and published by . This book was released on 2011 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lifetimes of 21 excited states in atomic Yb were measured using time-resolved fluorescence detection following pulsed laser excitation. The lifetime of the 4f145d6s 3D1 state, which is of particular importance for a proposed study of parity nonconservation in atoms, was measured to be 380(30) ns.
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ISBN 13 :
Total Pages : 1604 pages
Book Rating : 4.:/5 (3 download)
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 1176 pages
Book Rating : 4.3/5 (129 download)
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Author : W. H. Shafer
Publisher : Plenum Publishing Corporation
ISBN 13 : 9780306443480
Total Pages : 392 pages
Book Rating : 4.4/5 (434 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Plenum Publishing Corporation. This book was released on 1992 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses Listed by Discipline: Aerospace Engineering. Agricultural Economics, Sciences and Engineering. Architechtural Engineering and Urban Planning. Astronomy. Astrophysics. Ceramic Engineering. Communications Engineering and Computer Science. Cryogenic Engineering. Electrical Engineering. Engineering Mechanics. Engineering Physics. Engineering Science. Fuels, Combustion, and Air Pollution. General and Environmental Engineering. Geochemistry and Soil Science. Geological Sciences and Geophysical Engineering. Geology and Earth Science. Geophysics. Industrial Engineering. Marine and Ocean Engineering. Materials Science and Engineering. Mechanical Engineering and Bioengineering. Metallurgy. Meteorology and Atmospheric Science. 17 additional disciplines. Index.
Author : Mikhail Efimovich Levinshte?n
Publisher : World Scientific
ISBN 13 : 9789810215798
Total Pages : 668 pages
Book Rating : 4.2/5 (157 download)
Download or read book Best of Soviet Semiconductor Physics and Technology, 1989-1990 written by Mikhail Efimovich Levinshte?n and published by World Scientific. This book was released on 1995 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each year a large number of first rate articles on the physics and technology of semiconductor devices, written by Soviet experts in the field, are published. However, due to the lack of exchange and personal contact, most of these, unfortunately, are neglected by many scientists from the United States, Japan as well as Western Europe. Consequently, many important developments in semiconductor physics are missed by the Western world.This book is a serious attempt to bridge the gap between the Soviet and Western scientific communities. Most of all, it is an effort towards facilitating the communication and sharing of knowledge amongst people from different parts of the world. Ultimately, the aim is to contribute towards the building of a better world for all ? one where the knowledge of advanced technology and scientific discoveries is used to improve the quality of life and not the pursuit of selfish mutually destructive behavior. For those in the field who wish to partake in this exchange of knowledge and as a gesture of support for their Soviet counterparts, the reading of this book provides the first step.
Author : Trevar Riley
Publisher :
ISBN 13 :
Total Pages : 710 pages
Book Rating : 4.:/5 (318 download)
Download or read book Third International Conference, Indium Phosphide and Related Materials written by Trevar Riley and published by . This book was released on 1991 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher : Institution of Electrical Engineers
ISBN 13 :
Total Pages : 528 pages
Book Rating : 4.3/5 (91 download)
Download or read book Properties of Indium Phosphide written by and published by Institution of Electrical Engineers. This book was released on 1991 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invaluble to those studying or exploiting Indium Phosphide, which can provide tunable light sources at wavelengths which undergo minimum attenuation in fiber optic cables.
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Total Pages : 782 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 1264 pages
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Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 648 pages
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Author : Thad F. Bumgarner (CAPT, USAF.)
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Total Pages : pages
Book Rating : 4.:/5 (132 download)
Download or read book Time Resolved Photoluminescence of Ytterbium in Indium Phosphide written by Thad F. Bumgarner (CAPT, USAF.) and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 404 pages
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Total Pages : 892 pages
Book Rating : 4.3/5 (91 download)
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1973- include the following subject areas: Biological sciences, Agriculture, Chemistry, Environmental sciences, Health sciences, Engineering, Mathematics and statistics, Earth sciences, Physics, Education, Psychology, Sociology, Anthropology, History, Law & political science, Business & economics, Geography & regional planning, Language & literature, Fine arts, Library & information science, Mass communications, Music, Philosophy and Religion.
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Total Pages : 648 pages
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Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
