In:
Journal of Applied Physics, AIP Publishing, Vol. 95, No. 12 ( 2004-06-15), p. 7862-7866
Abstract:
The spectroscopic characteristics of potassium yttrium tungstate crystal (KYW), codoped with ytterbium and thulium ions, have been investigated from the point of view of up-conversion blue lasing from G41 multiplet. An overall H63 multiplet splitting of ∼530 cm−1 for the trivalent thulium ion in the KYW host was obtained. A decay time of ∼112 μs for the G41→H63 blue luminescence in the material doped by 1 at. % of thulium was measured. The value of peak emission cross section for this transition is estimated to be (1.8±0.3)×10−20 cm2. Strong cross-relaxation quenching was found to be one of the main channels of nonradiative losses from the G41 and H43 multiplets. The cross-relaxation rate was significantly higher at higher concentration of thulium.
Type of Medium:
Online Resource
ISSN:
0021-8979
,
1089-7550
Language:
English
Publisher:
AIP Publishing
Publication Date:
2004
detail.hit.zdb_id:
220641-9
detail.hit.zdb_id:
3112-4
detail.hit.zdb_id:
1476463-5
Permalink