Zobrazeno 1 - 10
of 53
pro vyhledávání: '"E. Łukowiak"'
Autor:
Jerzy Hanuza, Wieslaw Strek, H. Drulis, Przemysław J. Dereń, Artur Bednarkiewicz, E. Łukowiak, V. E. Gaishun
Publikováno v:
Journal of Non-Crystalline Solids. 288:56-65
The results of EPR and optical measurements of Cr-doped silica glasses obtained by means of sol–gel technology are presented. The effect of Cr concentration on optical behavior was studied. Thermoluminescence was observed after heating previously c
Autor:
K. Maruszewskia, Przemysław J. Dereń, B. Nissen-Sobocińska, I. Trabjerg, W. Strȩk, E. Łukowiak
Publikováno v:
Journal of Molecular Structure. 404:137-140
K 3 [Cr(NCS) 6 ] complex samples entrapped in silica glass were prepared by the sol-gel technique. It has been noticed that the original color of the complex changed gradually from violet to green upon entrapment. This process occurred within several
Publikováno v:
Journal of Molecular Structure. 325:155-160
The luminescence decay curves of the Cr(III) ion in natural diopside crystal [(Ca,Mg) 1− n (Na,Mn,Al,Cr) 1+ n Si 2 O 6 ] are analyzed within the framework of stochastic modelling. The existing model describes the relaxation process as the integrate
Publikováno v:
Acta Physica Polonica A. 84:1021-1024
The effect of stereoselectivity on energy transfer between Tb(III) and Eu(III) in crystals with glutamic acid and alanine was investigated. It was found that the stereoselectivity significantly changes the energy transfer in these systems. The theore
Publikováno v:
Physica Status Solidi (a). 137:K53-K55
Publikováno v:
Lasers in the Musculoskeletal System ISBN: 9783642629556
Laser surgery is investigated as a recent alternative approach to arthroscopic and spinal endoscopic surgery. In this field, Nd:YAG (1064 nm, 1320 nm, 1440 nm), Ho:YAG (2100 nm) and Excimer (308 nm) lasers are commonly used [8,10]. Recent reports on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b84fdfe83facc89d2ad43b381d371a66
https://doi.org/10.1007/978-3-642-56420-8_37
https://doi.org/10.1007/978-3-642-56420-8_37
Publikováno v:
Journal of Luminescence. 26:263-271
The phosphorescence of [Cr(NCS)6]-3 complexes in DMSO solution is studied as a function of temperature. An appropriate model to explain the temperature effect on the non-radiative decay of the doublet 2Eg state is formulated. It is shown that the app
Autor:
J. Radojewski, E. Łukowiak, B. Jeżowska-Trzebiatowska, W. Strȩk, J. Sarzyński, S. Patela, Andrzej Buczkowski
Publikováno v:
Scopus-Elsevier
A luminescent solar concentrator based on Nd3+ and Cr3+ doubly doped lithium aluminium phosphate glass for solar energy conversion applications has been presented. Absorption and fluorescence spectra and quantum yield of lithium aluminium phosphate g
Publikováno v:
Journal of Luminescence. 29:47-53
A conversion of infrared radiation into green fluorescence of Er +3 in centrosymmetric Cs 2 Na(Er 0.2 Yb 0.4 Y 0.4 )Cl 6 crystals is examined and interpreted on the basis of stepwise energy transfer mechanism. Some aspects of the conversion process a
Publikováno v:
Journal of Luminescence. 33:159-166
Spectral luminescence characteristics of the Cs2Na(Er, Yb, Y)Cl6 type upconverter have been measured in the range 300–650 K. A nearly sixfold decrease of the emission intensity of an upconverter was observed in the green area. This emission corresp