Zobrazeno 1 - 10 of 107 pro vyhledávání: '"Doris Ehrt"'
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Akademický článek
Charge transfer transitions in glasses - Attempt of a systematic review
Autor: Doris Möncke, Doris Ehrt
Publikováno v: Optical Materials: X, Vol 12, Iss , Pp 100092- (2021)
In glasses, even low levels of dopants or impurities can give rise to very intense and broad charge transfer transitions from ligands (e.g. oxygen or fluorine ions) to the metal ion (L→M), absorbing strongly in the short wavelength ultraviolet. In
Externí odkaz: https://doaj.org/article/d77392eeea2645e09cdcfc0f8314192e
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2
Electrical conductivity and viscosity of phosphate glasses and melts
Autor: Sylvia Flügel, Doris Ehrt
Publikováno v: Journal of Non-Crystalline Solids. 498:461-469
Phosphate glasses are of great interest for basic research and for special applications in various fields as technical and optical glasses. Metaphosphate compositions with PO4-chain structure are mostly used. The cations have a significant effect on
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18a2a82c9d5df2c4404b5c451d637029
https://doi.org/10.1016/j.jnoncrysol.2018.01.047
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3
Deep-UV materials
Autor: Doris Ehrt
Publikováno v: Advanced Optical Technologies. 7:225-242
Materials with high deep-ultraviolet (DUV; λ2, fluoride, phosphate, multicomponent silicates, and organic materials (PMMA), were investigated. The role of intrinsic absorption (UV edge) due to electron transitions between the main components, and ex
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34e3a1d5c9ed60002456e15a0ff2f7a4
https://doi.org/10.1515/aot-2018-0023
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4
Structural studies of NaPO3-AlF3 glasses by high-resolution double-resonance nuclear magnetic resonance spectroscopy
Autor: Carla C. de Araujo, Doris Möncke, Henrik Bradtmüller, Hellmut Eckert, Doris Ehrt, Long Zhang
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
The local structure of the model glasses (NaPO3)1–x-(AlF3)x (0 ≤ x ≤ 0.4), prepared by standard melt-cooling, was extensively investigated by high-resolution solid-state nuclear magnetic resonance (NMR) including advanced double-resonance techn
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b77f012ed26d83b7f144cfc640544cd0
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6
Preferential bonding in low alkali borosilicate glasses
Autor: Anja Winterstein, Efstratios I. Kamitsos, Doris Möncke, Doris Ehrt, Grégory Tricot
Publikováno v: Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B, 2017, 58 (4), pp.171-179. ⟨10.13036/17533562.58.4.171⟩
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B, Society of Glass Technology, 2017, 58 (4), pp.171-179. ⟨10.13036/17533562.58.4.171⟩
International audience; In an earlier review we discussed the connectivity in borosilicate glasses and compared our experimental findings by NMR, infrared and Raman spectroscopies with older structural models. We could show, contrary to the often cit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee5128ed5f2fc9eaf3d7a90bfe60b57f
https://hal.science/hal-01585642
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7
Bonding and ion–ion interactions of Mn2+ ions in fluoride-phosphate and boro-silicate glasses probed by EPR and fluorescence spectroscopy
Autor: Efstratios I. Kamitsos, Doris Ehrt, Doris Möncke, Manfred Friedrich, Andreas Herrmann
Publikováno v: Journal of Non-Crystalline Solids. 357:2542-2551
Electron paramagnetic resonance (EPR) and fluorescence spectroscopy are sensitive and selective methods for probing coordination and bonding of Mn2+ ions in glasses. Both methods provide additional information on Mn–Mn ion interactions and cluster
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5686e6690b2a625adeb0baf1a2b69df7
https://doi.org/10.1016/j.jnoncrysol.2011.02.017
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8
High repetition rate plasma mirror for temporal contrast enhancement of terawatt femtosecond laser pulses by three orders of magnitude
Autor: Christian Rödel, M. Heyer, Gerhard G. Paulus, Doris Ehrt, M. Behmke, Wolfgang Ziegler, Malte C. Kaluza, Matthias Kübel, O. Jäckel
Publikováno v: Applied Physics B. 103:295-302
We present a plasma mirror configuration that improves the temporal pulse contrast of femtosecond terawatt laser pulses by a factor of thousand using a single antireflection coated glass target. The device provides ultra-high contrast for experiments
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::818a3147384e2a83990330b4c7a5b9e1
https://doi.org/10.1007/s00340-010-4329-7
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