AN ANALYSIS ON TRANSITIONS ABSORPTION AND EMISSION OF Sm3+ ION IN ALLKALI BORATE GLASS (67H3BO3 . 12Li2O3 .20K2CO3 .1Sm2O3) USING THESE JUDD-OFELT
Abstract
Optical absorption and emission spectra of Sm3+ ions in allkali borate glass (67H3BO3.12Li2O3.20K2CO3) have been investigated. The absorption spectra of Sm3+ ion in allkali borate glass shows two regions: high – energy region (at 400nm; 474nm) and low - energy region (at 1070nm, 1220nm, 1365nm, 1480nm, 1582nm, and 1890nm). The luminescence spectra indicates four emission bands at 560nm, 600nm 650nm and 710nm that were observed due to the transitions from the level 4G5/2 to 6H5/2 , 6H7/2 , 6H9/2 and 6H11/2 equivalently. The analyzed results by using Judd-Ofelt theory give the values of three Ω2; Ω4 and Ω6 intensity parameters. Various radiative parameters such as transitions of probabilities (AR), calculated branching ratios (bR), radiative lifetime (tR) and stimulated emission crooss-sections (sp) have been calculated for excited level.
