Analysis of physical, structural and photoluminescence properties of Sm3+ ions doped SrO-MgO-Na2O-Al2O3-B2O3 glasses for visible orange laser applications

Abstract

In current work, Alkaline Earth Alumino Borate (AEAlB) glasses doped with Sm³⁺ ions prepared by traditional melt quench technique and captivating physical, structural, thermal and optical characterizations were carried out for the AEAlBSm samples. Physical parameters were evaluated by considering density and refractive index of AEAlBSm glasses. Optical properties were studied through absorption, emission and decay measurements. JO-Intensity parameters (Ω_2,4,6), nephaulexetic ratio and bonding parameter were measured to know the ligand environment information around the samarium ion. The JO parameters follow the trend Ω₆>Ω₄>Ω₂. Various radiative properties such as stimulated emission cross-section (σ_sec), gain bandwidth (σ_sec × Δλ_p), optical gain (σ_sec×Ƭ_R) and quantum efficiency (ƞ) were measured from the emission spectral analysis. Of all the glasses AEAlBSm1.0 glass possesses highest stimulated emission cross-section (1.89 $\times$ 10⁻²¹) (cm²) and quantum efficiency (90%). From All these results the prepared AEAlBSm1.0 glass sample suggested for solid state laser device applications in reddish-orange region.