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dc.contributor.author | Nicolas S. | |
dc.contributor.author | Descroix E. | |
dc.contributor.author | Joubert M. | |
dc.contributor.author | Guyot Y. | |
dc.contributor.author | Laroche M. | |
dc.contributor.author | Moncorgé R. | |
dc.contributor.author | Abdulsabirov R. | |
dc.contributor.author | Naumov A. | |
dc.contributor.author | Semashko V. | |
dc.contributor.author | Tkachuk A. | |
dc.contributor.author | Malinowski M. | |
dc.date.accessioned | 2018-09-17T20:52:30Z | |
dc.date.available | 2018-09-17T20:52:30Z | |
dc.date.issued | 2003 | |
dc.identifier.issn | 0925-3467 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/134186 | |
dc.description.abstract | Gain experiments based on the interconfigurational 4f5d to 4f2 optical transitions in praseodymium-doped fluoride crystals were achieved. The measurements were performed under upconversion pumping of the 4f5d excited configuration via the 3PJ, 1I6 intermediate levels of the 4f2 configuration, using a pump-probe set-up with three synchronized Q-switched nanosecond pulsed lasers. In spite of this two-step excitation, optical losses, due excited state absorption (4f5d→conduction band transition) leading to Pr3+ ion photoionisation and color center formation, were too high to observe any amplification. However, these losses were found definitely weaker in fluoride crystals (Pr:LiYF4, Pr:LiLuF4) than in oxides (Pr:YAlO3) and, probing the 5d→4f emission of Ce3+ under two-step excitation pumping of the Pr3+ 4f5d states in co-doped Pr,Ce:LiLuF4 crystals, no losses were detected at all. © 2002 Elsevier Science B.V. All rights reserved. | |
dc.relation.ispartofseries | Optical Materials | |
dc.title | Potentiality of Pr3+- and Pr3+ + Ce3+ -doped crystals for tunable UV upconversion lasers | |
dc.type | Conference Paper | |
dc.relation.ispartofseries-issue | 2 | |
dc.relation.ispartofseries-volume | 22 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 139 | |
dc.source.id | SCOPUS09253467-2003-22-2-SID0037400047 |