Calculation of optical parameters and investigation of luminescence spectra in Sm³⁺ doped borate glasses

In the present paper, Sm³⁺ doped borate glasses (LBLB) with high effective visible fluorescence emission have been synthesized. The absorption and fluorescence spectra of this glass were measured and analyzed. The absorption spectra were fitted by J-O theory, and the intensity parameters Ω_t = (2, 4, 6) were found to be 6.81 × 10^-20, 4.43 × 10^-20, and 2.58 × 10^-20 cm², respectively, then the relative intensity of spectral lines of every energy level transition, radiative transition probabilities, radiative lifetimes, and fluorescence branching ratio were calculated. Under the excitation of UV light, Sm³⁺ doped borate glasses (LBLB) emit bright salmon pink light. The excitation spectra indicate that argon laser is an effective excitation source in Sm³⁺ doped LBLB glasses.