Balakrishna, A Optical properties and spectroscopic study of different modifier based Pr(3+):LiFB glasses as optical amplifiers. [electronic resource] - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Jan 2017 - 167-73 p. digital Publication Type: Journal Article ISSN: 1873-3557 Standard No.: 10.1016/j.saa.2016.07.013 doi