ISSN:
1432-0630
Keywords:
78.55.Hx
;
42.70.Hj
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract Nonequivalent Er3+ sites in LiNbO3 crystals have been evidenced by low-temperature optical absorption measurements. The radiative transition rates for the 4 S 3/2, 4 F 9/2, 4 I 9/2, 4 I 11/2, and 4 I 13/2 levels have been evaluated by the Judd-Ofelt method, and the contribution of multiphonon relaxation to the decay of excited states has been estimated. The quantum efficiency of the 4 I 11/2 level has been estimated to be 6% only, thus the excitation of levels lower than 4 S 3/2 is expected to populate efficiently the 4 I 13/2 level.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00348165
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