Optical properties of Sm3+ions doped 10SrO-(10-x) Al2O3-10BaCl2-60B2O3-10TeO2 glasses for reddish orange laser applications

In the present work, oxy chloro boro tellurite (OCBT) glasses were prepared with the composition 10SrO-(10-x) Al2O3-10BaCl(2)-60B(2)O(3)-10TeO(2)-rSm(2)O (where r = 0.5, 1.0, 1.5, 2.0 and 2.5 mol%) using melt quenching technique. Several optical properties were studied after thorough analysis of absorption, excitation, photoluminescence (PL) and PL decay profiles of these glasses. Judd-Ofelt parameters evaluated from the absorption spectra are used to understand the asymmetry around the Sm3+ ions in the present reported glasses. An effort has been made to understand the PL properties of these glasses by evaluating the key parameters such as branching ratios and stimulated emission cross-sections and quantum efficiencies. In the process of understanding mutual interaction between the Sm3+ ions, Inokuti-Hirayama (I-H) method is applied. CIE color co-ordinates also measured to confirm the reddish orange emission from these glasses. From all obtained parameters, it can be suggested that OCBTSm1.0 glass is aptly suitable for reddish orange laser applications.

Automated summary

This study investigated the asymmetry around Sm3+ ions and PL properties of OCBT glasses, suggesting that OCBT 1.0 mol% Sm glass is suitable for reddish orange laser applications.