Zobrazeno 1 - 10
of 98
pro vyhledávání: '"N. Tabatabaie"'
Publikováno v:
Iranian Journal of Public Health, Vol 30, Iss 1-2, Pp 21-26 (2001)
Slow Sand Filters are as a proper technology for pre-treatment of raw water, with a fine and medium trubidity in small communities in developing countries. Thus, with a minimum operation cost and minimum need for expest bodies have the maximum effici
Externí odkaz:
https://doaj.org/article/4a9eb677eda645338d436ded873a6301
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 1:606-615
The axial and lateral spontaneous emission intensities from vertical-cavity laser diodes have been studied both experimentally and theoretically. The measurements show that spontaneous emission from the cavity perimeter (lateral emission) is overwhel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f863552ac1609430d993861f38cafb2
https://doi.org/10.1109/2944.401248
https://doi.org/10.1109/2944.401248
Publikováno v:
IEEE Journal of Quantum Electronics. 30:2500-2506
We discuss the dynamics of transverse mode competition in an etched air-post vertical-cavity laser diode under dc excitation using an annular ring contact as a spatial filter. Distinct regions of operation are found for various ranges of fixed bias c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e9ad7d6c442e56ddd5ef0594c682de7
https://doi.org/10.1109/3.333701
https://doi.org/10.1109/3.333701
Autor:
J. P. Harbison, L. T. Florez, Timothy D. Sands, H. L. Gilchrist, N. Tabatabaie, W.K. Chan, V. G. Keramidas, T.L. Cheeks
Publikováno v:
Surface Science. 228:1-8
We describe the molecular beam epitaxial growth of NiAl metallic quantum wells as thin as 1 nm buried in III–V semiconductor heterostructures with emphasis on the growth conditions that yield monocrystalline NiAl films with atomically abrupt interf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f649483bc5c7d1e21c3ac619fe10667
https://doi.org/10.1016/0039-6028(90)90245-4
https://doi.org/10.1016/0039-6028(90)90245-4
Autor:
Ramamoorthy Ramesh, Chris Palmstrom, Timothy D. Sands, Yaron Silberberg, T.L. Cheeks, N. Tabatabaie, J. P. Harbison, V. G. Keramidas
Publikováno v:
Materials Science Reports. 5:99-170
Long before the advent of nanofabrication and quantum-effect devices, the technological limitations imposed by polycrystalline, multiphase and thermally unstable contacts to III-V semiconductors were of concern to forward-looking materials scientists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::950653b458ee6e79979ef6095c257eca
https://doi.org/10.1016/s0920-2307(05)80003-9
https://doi.org/10.1016/s0920-2307(05)80003-9
Autor:
Lawrence W. Shacklette, N. Tabatabaie, Jason Holman, H. Guckel, Stephen M. Emo, Robert A. Norwood
Publikováno v:
Applied Physics Letters. 73:3187-3189
A micro-optoelectromechanical switch that combines microactuator technology developed via the Lithographie Galvanformung Abformung process with lithographically defined polymeric alignment elements is described. The multimode optical switch achieves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c1e1d1cf12e01bbfe3019549fbf128d
https://doi.org/10.1063/1.122713
https://doi.org/10.1063/1.122713
Autor:
Timothy D. Sands, H. L. Gilchrist, N. Tabatabaie, V. G. Keramidas, L. T. Florez, T.L. Cheeks, J. P. Harbison
Publikováno v:
International Technical Digest on Electron Devices Meeting.
The realization of a buried metal electrode tunneling transistor is reported. The device is fabricated in an epitaxial monocrystalline (Al,Ga)As-NiAl-(Al,Ga)As semiconductor-metal-semiconductor heterostructure and uses the thinnest buried electrode e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d627b8a09f731f3f140c986b29387b83
https://doi.org/10.1109/iedm.1989.74343
https://doi.org/10.1109/iedm.1989.74343
Autor:
H. L. Gilchrist, Chris Palmstrom, K.C. Garrison, F. DeRosa, N. Tabatabaie, S. Mounier, G. W. Hull, S.J. Allen, Timothy D. Sands
Publikováno v:
Surface Science. 228:13-15
Magneto-transport measurements have been performed on epitaxial layers of ErAs buried inside insulating GaAs with thicknesses from 15 nm (bulk like) to 0.7 nm (quantum confined). Magneto-transport in bulk like layers is consistent with a low density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37a7d2e511d68f3b8640b24aef1307a6
https://doi.org/10.1016/0039-6028(90)90247-6
https://doi.org/10.1016/0039-6028(90)90247-6
Autor:
T.L. Cheeks, R. E. Nahory, B. Wilkens, J. P. Harbison, H. L. Gilchrist, N. Tabatabaie, V. G. Keramidas, Timothy D. Sands
Publikováno v:
Applied Physics Letters. 56:1043-1045
Current‐voltage, capacitance‐voltage, and internal photoemission measurements of back‐to‐back Schottky diodes of buried metal (Al,Ga)As/NiAl/(Al,Ga)As double heterostructures grown by molecular beam epitaxy are reported. By using a selective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22100c26741a70cc36ae8284d1d634f0
https://doi.org/10.1063/1.102609
https://doi.org/10.1063/1.102609
Autor:
T. Zhang, D. L. Wokosin, K. D. Choquette, R. E. Leibenguth, J. W. Long, D. A. Richie, N. Tabatabaie
Publikováno v:
Optical Society of America Annual Meeting.
An important figure of merit for the design of low threshold vertical-cavity surface-emitting lasers is the spontaneous emission factor. It is defined as the ratio of the optical energy coupled to modes near the fundamental cavity mode to the total r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db0fadc77558dc67229c9c4e3576087c
https://doi.org/10.1364/oam.1992.fkk6
https://doi.org/10.1364/oam.1992.fkk6