Zobrazeno 1 - 10 of 277 pro vyhledávání: '"R.H Hopkins"'
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Growth of Large Diameter SiC Crystals by Advanced Physical Vapor Transport
Autor: R.H. Hopkins, Donovan L. Barrett, Andrew E. Souzis, Robert P. Devaty, J. Chen, Ejiro Emorhokpor, Ilya Zwieback, Thomas Anderson, A. Gupta, Murugesu Yoganathan, Wolfgang J. Choyke, Tanner Charles D, Fei Yan
Publikováno v: Materials Science Forum. :9-12
Semi-insulating 6H SiC substrates, 2”, 3” and 100mm in diameter, and n+ 4H SiC substrates, 2” and 3” in diameter, are grown at II-VI using the Advanced Physical Vapor Transport (APVT) technique [1]. The process utilizes high-purity SiC source
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5faa847960e7c5e3b591b9ca95479f8
https://doi.org/10.4028/www.scientific.net/msf.483-485.9
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3
Growth of Undoped (Vanadium-Free) Semi-Insulating 6H-SiC Single Crystals
Autor: Thomas Anderson, Murugesu Yoganathan, Ilya Zwieback, Andrew E. Souzis, Donovan L. Barrett, J. Chen, R.H. Hopkins, A. Gupta, Ejiro Emorhokpor, Tanner Charles D
Publikováno v: Materials Science Forum. :35-38
II-VI has developed an Advanced PVT (APVT) process for the growth of nominally undoped (vanadium-free) semi-insulating 2” and 3” diameter 6H-SiC crystals with room temperature resistivity up to 1010 W·cm. The process utilizes high-purity SiC sou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7fc7cd00a1128ac0f4231aa85953c3ef
https://doi.org/10.4028/www.scientific.net/msf.483-485.35
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5
Hg2Cl2 crystals for efficient birefringence etalon filters
Autor: Walter M. B. Duval, W. Rosch, Narsingh B. Singh, R.H Hopkins, Sam R. Coriell, T. Henningsen, R. Mazelsky, D. Suhre
Publikováno v: Journal of Crystal Growth. :995-998
We have experimentally demonstrated the physical vapor transport growth of 30 mm diameter and 8 cm long mercurous chloride crystals for birefringence etalon filters. The 〈1 1 0〉 oriented seeded crystals were grown in a two zone vertical transpare
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::509eeca4dc61bddf21defae994dce315
https://doi.org/10.1016/s0022-0248(98)01211-1
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Active control of interface shape during the crystal growth of lead bromide
Autor: R. Mazelsky, C Batur, R.H Hopkins, Sam R. Coriell, R.G Seidensticker, Walter M. B. Duval, Narsingh B. Singh, W. Rosch
Publikováno v: Journal of Crystal Growth. :988-994
A thermal model for predicting and designing the furnace temperature profile was developed and used for the crystal growth of lead bromide. The model gives the ampoule temperature as a function of the furnace temperature, thermal conductivity, heat t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba4d916a1702218b09e916aafc5bdd61
https://doi.org/10.1016/s0022-0248(98)01213-5
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Bridgman growth of GaSe crystals for nonlinear optical applications
Autor: David E. Zelmon, A.X Zhao, Frank Kenneth Hopkins, D. Suhre, R Narayanan, V. Balakrishna, R.H Hopkins, N.C. Fernelius, Narsingh B. Singh
Publikováno v: Materials Science and Engineering: B. 49:243-246
We have grown and fabricated single crystals of gallium selenide for nonlinear optical applications in the mid-infrared wavelength region. A numerical method involving the finite volume technique was used to optimize the crystal growth furnace config
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57e6354ce95f9a777348331c18fa691c
https://doi.org/10.1016/s0921-5107(97)00137-2
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