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Author : Thad F. Bumgarner (CAPT, USAF.)
Publisher :
ISBN 13 :
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:
Author : Thad F. Bumgarner
Publisher :
ISBN 13 :
Total Pages : 117 pages
Book Rating : 4.:/5 (227 download)
Download or read book Time Resolved Photoluminescence of Ytterbium in Indium Phosphide written by Thad F. Bumgarner and published by . This book was released on 1988 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time resolved photoluminescence of ytterbium (Yb) implanted in indium phosphide (Inp) was the primary emphasis of this research. The decay lifetimes of the 1002 nm Yb emission were investigated as a function of temperature. Initial attempts were made to investigate as a function of temperature. Initial attempts were made to investigate aluminum gallium arsenide (AlGaAs) implanted with ytterbium. Theses. (mjm).
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).
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:
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ISBN 13 :
Total Pages : 252 pages
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ISBN 13 :
Total Pages : 848 pages
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Total Pages : 840 pages
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Total Pages : 626 pages
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Total Pages : 2282 pages
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Download or read book The Engineering Index Annual written by and published by . This book was released on 1988 with total page 2282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
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Total Pages : 1074 pages
Book Rating : 4.3/5 (91 download)
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Total Pages : 1004 pages
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Total Pages : 940 pages
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Author : American Ceramic Society
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Total Pages : 1150 pages
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Download or read book Ceramic Abstracts written by American Ceramic Society and published by . This book was released on 1995 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas Alured Faunce
Publisher : CRC Press
ISBN 13 : 9814463779
Total Pages : 353 pages
Book Rating : 4.8/5 (144 download)
Download or read book Nanotechnology Toward the Sustainocene written by Thomas Alured Faunce and published by CRC Press. This book was released on 2014-12-02 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the sustainability of our world is being endangered or destroyed by the misguided activities of artificial human entities, real people have begun to expand their moral sympathies sufficiently to prioritize protecting our world's interests. They have developed a new technology-nanotechnology-that has the potential to advance human society towa
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Total Pages : 2002 pages
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Total Pages : 1948 pages
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