Abstract
The holmium (Ho3+) ions-based fluoro borosilicate (SBNCHo) glasses have been prepared using the traditional melt quenching technique with varying concentrations of Ho3+ ions. Physical parameters were analyzed using x-ray diffraction, energy dispersive analysis of x-rays, fourier transform infrared spectroscopy, optical, luminescence, and Commission International de I'Eclairage (CIE) studies. Judd-Ofelt spectral intensity parameters were evaluated for SBNCHo_1.0 (Ω2 = 5.292 x 10-20 cm2, Ω4 = 3.062 x 10-20 cm2 and Ω6 = 3.376 x 10-20 cm2) glass, optical bandgaps were estimated using optical absorption studies. The Photoluminescence emission spectra were recorded for synthesized glasses with 452 nm excitation. The stimulated emission (σe = 1.40 x 10-20 cm2) for the intense green radiation (5S2 (5F4) → 5I8) was calculated. The lifetime decay profile was analyzed for all the synthesized glasses. From the CIE color coordinates of SBNCHo glasses, the color purity was estimated to be (SBNCHo_1.0 (98.6 %)). These results strongly support the applicability of SBNCHo_1.0 glass for green laser applications.
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