QUANTUM EFFICIENCY OF THE YAL3(BO3)(4)ND SELF-FREQUENCY-DOUBLING LASER MATERIAL

Authors
JAQUE D MUNOZ JA CUSSO F SOLE JG
Citation
D. Jaque et al., QUANTUM EFFICIENCY OF THE YAL3(BO3)(4)ND SELF-FREQUENCY-DOUBLING LASER MATERIAL, Journal of physics. Condensed matter, 10(35), 1998, pp. 7901-7905
Citations number
19
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
10
Issue
35
Year of publication
1998
Pages
7901 - 7905
Database
ISI
SICI code
0953-8984(1998)10:35<7901:QEOTYS>2.0.ZU;2-W
Abstract
In this paper, the quantum efficiency of the YAl3(BO3)(4):Nd laser cry stal has been measured using a method based on the simultaneous measur ement of photoacoustic and photoluminescence signals within a broad wa velength excitation range (700-850 nm). A quantum efficiency Phi = 0.2 6 +/- 0.05 is determined. This low quantum efficiency is explained id terms of a high multiphonon relaxation rate from the metastable state F-4(3/2) involving about three effective phonons of energy 1346 cm(-1) .