Structural and optical properties of Ho2TeO6 micro-crystals embedded in tellurite matrix

In the present work, Ho3+ doped tellurite glasses and glass ceramics have been explored. Micro-sized Ho2TeO6 crystals have been successfully prepared in TeO2 matrix using two step heat treatment method. Structural, thermal and optical properties have been investigated using different characterization techniques. Variations in above mentioned properties were observed to improve when these crystals grew in TeO2 matrix. We have reported several anti-Stokes and Stokes emissions extended from UV to NIR region on excitation with 532 and 976 nm laser radiations. The unique structure of Ho2TeO6 crystal was expected to play a crucial role in enhancement of the optical properties of glass ceramics.