Utilizing high resolution spectra, the absorption efficiency for six Nd laser materials was calculated as functions of the effective blackbody temperature of the lamp and laser crystal size. The six materials were Nd:YAG, Nd:YLF, Nd:Q-98 Glass, Nd:YVO4, Nd:BEL, and Nd:Cr:GSGG. Under the guidelines of this study, Nd:Cr:GSGG’s absorption efficiency is twice the absorption efficiency of any of the other laser materials.
Patricia L. Cross, Norman P. Barnes, Milton W. Skolaut, Jr., and Mark E. Storm, "Blackbody absorption efficiencies for six lamp pumped Nd laser materials," Appl. Opt. 29, 791-797 (1990)