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Autor:
Nguyen Hong Ky.
Thèse, Sciences, EPF Lausanne, No 1170, 1993, Département de physique. Rapporteur: F.-K. Reinhart ; Co-rapporteur: J.-D. Ganière ; Co-rapporteur: L. Pavesi ; Co-rapporteur: J.-C. Pfister.
Externí odkaz:
http://library.epfl.ch/theses/?nr=1170
Publikováno v:
Journal of Applied Physics; 4/15/1996, Vol. 79 Issue 8, p4009, 8p, 1 Black and White Photograph, 6 Graphs
Autor:
Nguyen Hong Ky
Publikováno v:
Physica B: Condensed Matter. :754-758
Different effects related to the reactions of column-III vacancies and interstitials during Zn diffusion into undoped, Si-doped and Be-doped GaAs/Al x Ga l− x As multilayered structures are investigated by secondary-ion mass spectrometry and photol
Publikováno v:
Physica B: Condensed Matter. :729-732
To identify the defects responsible for anomalous electronic properties at the molecular-beam-epitaxy regrown interface, the interfaces of Si-doped GaAs epitaxial layers (n=7×1016 cm−3) have been investigated. A significant reduction of the carrie
Publikováno v:
Journal of Applied Physics. 86:259-266
The effects of background n- and p-type doping on Zn diffusion in GaAs/AlGaAs multilayered structures are investigated by secondary-ion-mass spectrometry and photoluminescence measurements. Zn diffusions are performed at 575 degrees C into Si-doped,
Autor:
F. K. Reinhart, Nguyen Hong Ky
Publikováno v:
Journal of Applied Physics. 83:718-724
Strong evidence for amphoteric native defect reactions is obtained by photoluminescence analysis of Si-doped GaAs samples (n≈1.5×1018 cm−3) annealed under different conditions. Annealing in excess As4 vapor creates a large concentration of Ga va
Autor:
Nguyen Hong Ky
Publikováno v:
Materials Science Forum. :1631-1636
Akademický článek
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Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 14:800-805
All-fiber optical phase modulators were fabricated by coating standard telecommunication optical fibers with thin films of piezoelectric ZnO. Piezoelectric optical fiber coatings of PbZrxTi1-xO3(PZT) were also produced, and the actuation capability n
Publikováno v:
Journal of Lightwave Technology. 14:23-26
Miniature all-fiber phase modulators with a radially symmetrical piezoelectric ZnO jacket have been characterized using a Mach-Zehnder interferometer over a wide frequency range from 50 Hz to 50 MHz. The frequency response of the modulators consists