Zobrazeno 1 - 10
of 54
pro vyhledávání: '"István Földvári"'
Autor:
Piotr Solarz, Gábor Corradi, E. Beregi, Krisztián Lengyel, László Kovács, István Földvári, Witold Ryba-Romanowski
Publikováno v:
Optical Materials. 53:30-33
The existence of a recently described monoclinic phase ( C 2/ c , Z = 8) (Beregi et al., 2012) in addition to the well-known Huntite type rhombohedral ( R 32) polytypic modification of the GdAl 3 (BO 3 ) 4 (GAB) crystal at room temperature provides a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97bdca1557ec935ae455b711656d8e75
https://doi.org/10.1016/j.optmat.2016.01.011
https://doi.org/10.1016/j.optmat.2016.01.011
Publikováno v:
Journal of Crystal Growth. 351:72-76
The evidence of a new polytypic phase was demonstrated in double doped gadolinium aluminum borate (GAB) crystals grown by the high temperature top seeded solution growth (HTTSSG) method. The structures of the rhombohedral and the new monoclinic phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c7ad3be6a6e80516e0c252631aca428
https://doi.org/10.1016/j.jcrysgro.2012.04.031
https://doi.org/10.1016/j.jcrysgro.2012.04.031
Autor:
Piotr Solarz, E. Beregi, Witold Ryba-Romanowski, R. Lisiecki, Grażyna Dominiak-Dzik, Krisztián Lengyel, István Földvári
Publikováno v:
Optical Materials. 32:1446-1450
Single crystal of YAl 3 (BO 3 ) 4 (YAB) containing 1 at.% of Sm 3+ was grown by the top seeded high temperature solution method. Optical absorption, excitation and luminescence spectra as well as luminescence decay curves were recorded for this syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3810cd9756344a9746001c5d4f85a47d
https://doi.org/10.1016/j.optmat.2010.05.017
https://doi.org/10.1016/j.optmat.2010.05.017
Publikováno v:
Optical Materials. 31:306-310
Yb + Tm co-doped Bi 2 TeO 5 single crystals were grown by the Czochralski method. Optical absorption and luminescence spectra of the crystals were determined and interpreted. The dynamics of the Tm and Yb excited states were followed by luminescence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c0b1187ea495d73f9f49610aed22286
https://doi.org/10.1016/j.optmat.2008.04.016
https://doi.org/10.1016/j.optmat.2008.04.016
Publikováno v:
physica status solidi c. 4:826-829
In this paper the optical properties (emission and excitation spectra) of Tb3+ and Eu3+ ions in LiNbO3:Tb3+(LNTb), and LiNbO3:Eu3+(LNEu) single crystals, and of Tb3+ and Eu3+ ions in doubly doped LiNbO3:Tb3+,Eu3+ (LNTbEu) are presented, in the 200-70
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf0197ead3fc23f82a0937704147704c
https://doi.org/10.1002/pssc.200673849
https://doi.org/10.1002/pssc.200673849
Publikováno v:
physica status solidi c. 4:860-863
In the present work high resolution Fourier Transform spectroscopy is applied to monitor the electron-phonon (e–-ph) interaction in YAB single crystals doped with trivalent Er and Dy ions. The electron-phonon coupling is analysed by monitoring the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0c36cc30b2baa65725398dbf5ba237b
https://doi.org/10.1002/pssc.200673796
https://doi.org/10.1002/pssc.200673796
Autor:
István Földvári, Rosanna Capelletti, Nicola Magnani, Andrea Baraldi, E. Beregi, Margherita Mazzera
Publikováno v:
physica status solidi c. 4:1364-1367
High resolution FT spectroscopy has been applied to investigate a YAB: Ho 3+ (1 mol%) single crystal, grown by the top-seeded flux method, in the wave number 4000-25000 cm -1 and temperature 9-300 K ranges, respectively. The complex Ho 3+ (4f 10 ) no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f901267a758a9f74e473fb9edbd0f7b
https://doi.org/10.1002/pssc.200673799
https://doi.org/10.1002/pssc.200673799
Autor:
István Földvári, Andrea Baraldi, Rosanna Capelletti, Nicola Magnani, Margherita Mazzera, E. Beregi
Publikováno v:
Journal of Physics: Condensed Matter. 17:6245-6255
High resolution (0.04 cm−1) absorption spectra of Dy3+-doped YAl3(BO3)4 (YAB) single crystals were measured by Fourier transform spectroscopy in the spectral (2000–23 000 cm−1) and temperature (9–300 K) ranges. Samples with nominal 1 and 4% D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::109486fa8dd4480678e578008862f912
https://doi.org/10.1088/0953-8984/17/39/010
https://doi.org/10.1088/0953-8984/17/39/010
Publikováno v:
Journal of Luminescence. 111:25-35
Optical absorption and emission spectra of Er 3 + ions in Bi 2 TeO 5 single crystals have been studied at room temperature. Besides the H 11 / 2 2 → I 15 / 2 4 , S 3 / 2 4 → I 15 / 2 4 , and F 9 / 2 4 → I 15 / 2 4 , emission, that were typicall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8ad5f14c9d6a41950080eb1c960d4f3
https://doi.org/10.1016/j.jlumin.2004.05.005
https://doi.org/10.1016/j.jlumin.2004.05.005
Publikováno v:
physica status solidi (c). 2:175-179
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32806a9971869ed6af69c56dc85b72db
https://doi.org/10.1002/pssc.200460139
https://doi.org/10.1002/pssc.200460139