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pro vyhledávání: '"S.A Basun"'
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Akademický článek
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Publikováno v:
Journal of Luminescence. 125:31-39
A full understanding of the complicated spectra of the “N lines” in ruby that result from exchange-coupled pairs of chromium ions has remained a challenging but daunting task, especially for the nearest neighbour pair. Various inventive technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08cbe8f26b938e52dcb3e05116df93d3
https://doi.org/10.1016/j.jlumin.2006.08.022
https://doi.org/10.1016/j.jlumin.2006.08.022
Publikováno v:
Journal of Luminescence. 100:115-124
We have employed two-photon excitation to study the higher energy levels of Gd 3+ ions in CaAl 12 O 19 and we compare the results with those obtained using conventional UV excitation techniques. Under two-photon excitation, the luminescence intensity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd2c8e766a93023be1dde1f4637fdf66
https://doi.org/10.1016/s0022-2313(02)00458-1
https://doi.org/10.1016/s0022-2313(02)00458-1
Publikováno v:
Radiation Effects and Defects in Solids. 155:1-9
The light induced ionization of impurity centers and defects in insulating crystals results in many phenomena such as charge transfer optical transitions in absorption spectra, photoconductivity, the photovoltaic effect, optical bleaching, and photoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4e5d80d4462d2e889390d68a34a0aca
https://doi.org/10.1080/10420150108214084
https://doi.org/10.1080/10420150108214084
Publikováno v:
Applied Surface Science. :474-478
We present here a further study of unusual features observed in photoluminescence (PL) of Eu2+ in CaF2 layers of CaF2–CdF2 SLs (SLs) [N.S. Sokolov, S.V.Gastev, A.Yu. Khilko, S.M. Suturin, I.N. Yassievich, J.M. Langer, A. Kozanezcki, Phys.Rev B 59 (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7601ee39413c9144bfa87dcd22c961b1
https://doi.org/10.1016/s0169-4332(00)00236-1
https://doi.org/10.1016/s0169-4332(00)00236-1
Autor:
A. A. Kaplyanskii, K. W. Jang, Uwe Happek, Richard S. Meltzer, S.P. Feofilov, S.A. Basun, J. Choi
Publikováno v:
Physical Review B. 61:12848-12853
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a3351434c6a77b57ed8343df2d63422
https://doi.org/10.1103/physrevb.61.12848
https://doi.org/10.1103/physrevb.61.12848
Publikováno v:
Journal of Alloys and Compounds. :198-206
The optical properties of insulators activated with rare earth ions are determined by the energy levels of the impurity; hence, the study of intra-ion transitions has been the principal focus of numerous investigations in the past. This has occurred
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3c9f8c567faa54dd1ab4dad3e286e3e
https://doi.org/10.1016/s0925-8388(00)00630-7
https://doi.org/10.1016/s0925-8388(00)00630-7
Publikováno v:
Journal of Luminescence. :335-341
The linear Stark shift of optical frequencies in impurity centers lacking inversion site symmetry results in various external electric field effects observed in persistent spectral hole-burning (PSHB) phenomena. This paper reviews some new effects of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8405d674df3a37b7f5d57fdd841a4a1e
https://doi.org/10.1016/s0022-2313(99)00122-2
https://doi.org/10.1016/s0022-2313(99)00122-2
Autor:
G.F Imbusch, G.M Salley, Richard S. Meltzer, A.A. Kaplyanskii, Uwe Happek, S. E. Kapphan, S.A. Basun
Publikováno v:
Journal of Luminescence. :423-427
In this paper we present novel spectroscopic data clarifying the nature of the dominant Cr 3+ centers in LiNbO 3 . In the past, the Cr 3+ centers in LiNbO 3 have been the subject of intense debate, which was partly caused by the intrinsic Li + defici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c1b1763659797c74b0a870d0689a5cb
https://doi.org/10.1016/s0022-2313(99)00137-4
https://doi.org/10.1016/s0022-2313(99)00137-4