LOOPING MECHANISM IN YB3-TM3+-HO3+ DOPED GD3GA5O12 GARNET()

Authors
BRENIER A COURROL LC PEDRINI C MADEJ C BOULON G
Citation
A. Brenier et al., LOOPING MECHANISM IN YB3-TM3+-HO3+ DOPED GD3GA5O12 GARNET(), Journal of luminescence, 58(1-6), 1994, pp. 284-286
Citations number
3
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
58
Issue
1-6
Year of publication
1994
Pages
284 - 286
Database
ISI
SICI code
0022-2313(1994)58:1-6<284:LMIYDG>2.0.ZU;2-1
Abstract
Conversion of near infrared laser light into green emission has been o btained in Gd3Ga5O12:Yb:Tm:Ho by a two step process: absorption from t he ground states of the ions followed by a mechanism we have called th e looping mechanism. The latter is composed of an absorption from the I-5(7)(Ho) excited state followed by a positive feedback process via t he Tm ions. A two ion (Tm-Ho) model is given to describe the dynamics and the gain and losses of the loop are evaluated.