Investigation of nonlinear absorption of LaGaO3 : Co Crystals near 1.5 mu m

Authors
Golab, S Mierczyk, Z Ryba-Romanowski, W
Citation
S. Golab et al., Investigation of nonlinear absorption of LaGaO3 : Co Crystals near 1.5 mu m, PHYS ST S-A, 179(2), 2000, pp. 463-468
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
179
Issue
2
Year of publication
2000
Pages
463 - 468
Database
ISI
SICI code
0031-8965(20000616)179:2<463:IONAOL>2.0.ZU;2-P
Abstract
Nonlinear absorption near 1.5 mu m of cobalt doped LaGaO3 crystals has been investigated. The observed dependence of transmission coefficient on incid ent energy density reveals a contribution of an excited state absorption. T he assignment of ESA has been proposed tentatively, because a strong absorp tion of Co3+ prevents the location of excited levels of Co2+ which may be i nvolved. It has been concluded that LaGaO3:Co crystal is a good candiate as a passive Q-switch for erbium lasers operating near 1.5 mu m.