Zobrazeno 1 - 10
of 144
pro vyhledávání: '"David L Griscom"'
Publikováno v:
Journal of Non-Crystalline Solids
This work is supported by Material Science program IMIS2 of Latvia.
A fiber preform with P-doped silica core is studied by luminescence methods. P-doped silica was synthesized via the SPCVD method on a substrate tube made of pure silica glass F3
A fiber preform with P-doped silica core is studied by luminescence methods. P-doped silica was synthesized via the SPCVD method on a substrate tube made of pure silica glass F3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c70ea6d6186d353e50669e359946cec
https://doi.org/10.1016/j.jnoncrysol.2017.02.002
https://doi.org/10.1016/j.jnoncrysol.2017.02.002
Autor:
G. Chikvaidze, David L. Griscom, Anatoly N. Trukhin, J. Jansons, Krisjanis Smits, Dzintars Berzins
Publikováno v:
Journal of Luminescence. 166:346-355
Luminescence of phosphorus doped crystalline α-quartz and phosphosilicate glass with content 3P2O5·7SiO2 was studied. Water and OH groups are found by IR spectra in these materials. The spectrum of luminescence contains many bands in the range 1.5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72ea0bbaf019ccafd31c9b6d383d63c2
https://doi.org/10.1016/j.jlumin.2015.05.045
https://doi.org/10.1016/j.jlumin.2015.05.045
Autor:
David L. Griscom
Publikováno v:
Physics Research International. 2013:1-14
The natures of most radiation-induced point defects in amorphous silicon dioxide (a-SiO2) are well known on the basis of 56 years of electron spin resonance (ESR) and optical studies of pure and doped silica glass in bulk, thin-film, and fiber-optic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05c4a9fe4c25e8a6f53dc70dac4842ba
https://doi.org/10.1155/2013/379041
https://doi.org/10.1155/2013/379041
Autor:
David L. Griscom
Publikováno v:
Journal of Non-Crystalline Solids. 357:1945-1962
This paper reviews half a century of research on radiation-induced point defects in pure and doped glassy silica and its crystalline polymorph α quartz, placing emphasis on trapped-electron centers because the vast majority of all presently known po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b6038847d6f92ded9ab38bdf54b1f8b
https://doi.org/10.1016/j.jnoncrysol.2010.11.011
https://doi.org/10.1016/j.jnoncrysol.2010.11.011
Publikováno v:
Journal of Non-Crystalline Solids. 356:982-986
Silica glass samples doped with extra silicon (SiO 2 –Si: artificial oxygen deficiency) and with aluminum (SiO 2 –Al: Al-doped without accompanying alkali ions) were studied. The luminescence properties of these two samples are compared in the ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55420090f9f584429afafe4dcce3c883
https://doi.org/10.1016/j.jnoncrysol.2010.01.027
https://doi.org/10.1016/j.jnoncrysol.2010.01.027
Publikováno v:
Journal of Non-Crystalline Solids. 353:1560-1566
Influences of oxygen-deficiency on radiation properties of high-purity, low-OH fused silica were studied. It is found that thermostimulated luminescence (TSL) peaks are different for photo (7.7 eV) and X-ray excitation at 77 K. X-ray excitation produ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::191aefc77ec01b926627a83b1e4993a1
https://doi.org/10.1016/j.jnoncrysol.2007.01.028
https://doi.org/10.1016/j.jnoncrysol.2007.01.028
Autor:
David L. Griscom
Publikováno v:
Journal of Non-Crystalline Solids. 352:2601-2617
It has long been assumed that hole self-trapping should take place in amorphous silicon dioxide (a-SiO 2 ). However, no spectroscopic evidence for this was claimed before 1989, when the author used electron spin resonance (ESR) to identify self-trapp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ce484e793d86f4c96038d02786ac4e4
https://doi.org/10.1016/j.jnoncrysol.2006.03.033
https://doi.org/10.1016/j.jnoncrysol.2006.03.033
Autor:
David L. Griscom
Publikováno v:
Journal of Non-Crystalline Solids. 349:139-147
Two optical fibers with high-purity, low-OH/low-Cl silica-cores, one F-doped and one not, were subjected to γ irradiation at 77 K and studied by transmission optical spectroscopy as functions of dose rate, dose, optical bleaching, ambient-temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c5b87b434e2e401eb4e4884eac77ee4
https://doi.org/10.1016/j.jnoncrysol.2004.08.221
https://doi.org/10.1016/j.jnoncrysol.2004.08.221
Autor:
Chihiro Yamanaka, Ken-ichi Kondo, Ayao Akiyoshi, A. Schue, Tomotaka Homae, Motoji Ikeya, David L Griscom, Mario Affatigato, Takehiro Ueno
Publikováno v:
Journal of Non-Crystalline Solids. 323:7-26
Many of the pebbles and cobbles found in the ∼5000-km 2 ‘upland deposits’ of eastern Virginia and Southern Maryland (USA) are decorated with external flanges of hard red–brown material with uniform thicknesses ∼5 mm terminated by crisp conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fec6a57ec724808f54dae5c66dd2f80b
https://doi.org/10.1016/s0022-3093(03)00304-1
https://doi.org/10.1016/s0022-3093(03)00304-1
Autor:
J. Jansons, Anatoly N. Trukhin, G. Chikvaidze, David L. Griscom, Dzintars Berzins, Krisjanis Smits
Publikováno v:
AIP Conference Proceedings.
Luminescence of phosphate glasses such as CaO⋅P2O5 and SrO⋅P2O5 is compared with that of phosphorus doped crystalline α-quartz and phosphosilicate glass with content 3P2O5⋅7SiO2. Water & OH groups are found by IR spectra in these materials. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbe015022e9f0540f4924a63f81cdca5
https://doi.org/10.1063/1.4900472
https://doi.org/10.1063/1.4900472