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 |
|