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Acta Physica Sinica (Overseas Edition), 1993, Vol. 2(5): 333-344    DOI: 10.1088/1004-423X/2/5/002
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

QUANTUM EFFICIENCY AND MULTIPHONON NONRADIATIVE TRANSITION OF Er3+ IONS IN FLUORIDE GLASS

JIANG XUE-YIN (蒋雪茵), ZHANG ZHI-LIN (张志林), XU SHAO-HONG (许少鸿)
Department of Materials Science, Shanghai University of Science and Technology, Shanghai 201800, China
Abstract  Optical absorption, emission and excitation spectra, lifetimes of 4S3/2 state and 4F9/2 state from 10K to 500K, and Raman spectra were measured for Er3+ ions in fluoride glass. The radiative transition probabilities were calculated on the basis of Judd-Ofelt theory. The nonradiative transition probabilities and the quantum efficiencies were determined by calculating the difference between the measured lifetimes and the calculated radiative transition probabilities. The temperature dependence of nonradiative transition provavility was investigated using the Huang-Rhys theory of multiphonon relaxation , in which two kinds of phonons as well as the parameter s were taken into consideration. A fairly good agreement of the theoretical calculation with the experimental results has been obtained. The value of s is estimated and the effect of s is discussed.
Received:  18 May 1992      Accepted manuscript online: 
PACS:  78.30.Ly (Disordered solids)  
  63.20.-e (Phonons in crystal lattices)  
  78.40.Pg (Disordered solids)  
Fund: Project supported by the National Natural Science Foundation of China and the Laboratory of Physics of Exited States, Academia Sinica.

Cite this article: 

JIANG XUE-YIN (蒋雪茵), ZHANG ZHI-LIN (张志林), XU SHAO-HONG (许少鸿) QUANTUM EFFICIENCY AND MULTIPHONON NONRADIATIVE TRANSITION OF Er3+ IONS IN FLUORIDE GLASS 1993 Acta Physica Sinica (Overseas Edition) 2 333

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