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    STUDIA PHYSICA - Issue no. 1 / 2003  
         
  Article:   HOMOGENEOUS ABSORPTION CROSS SECTION OF LEAD-BISMUTHATE GLASSES.

Authors:  R. POP, N.N. PUŞCAŞ, VIORICA SIMON.
 
       
         
  Abstract:  Results concerning transparence in infrared range of xFe2O3(100-x)[3Bi2O32PbO] glasses (0  x  20 mol %) are reported. The homogeneous absorption cross section was determined from optical absorption spectra using the density matrix formalism of McCumber theoretical model. The glass transition temperature with increasing Fe2O3 content was also investigated.  
         
     
         
         
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