Spectral and Thermal Properties of Ho3+ Doped Aluminum- Barium- Calcium-Magnesium Fluoride Glasses

International Journal of Applied Physics

© 2020 by SSRG - IJAP Journal

Volume 7 Issue 1

Year of Publication : 2020

Authors : S.L.Meena

10.14445/23500301/IJAP-V7I1P103

How to Cite?

S.L.Meena, "Spectral and Thermal Properties of Ho3+ Doped Aluminum- Barium- Calcium-Magnesium Fluoride Glasses," SSRG International Journal of Applied Physics, vol. 7,  no. 1, pp. 14-20, 2020. Crossref, https://doi.org/10.14445/23500301/IJAP-V7I1P103

Abstract:

Aluminum- Barium- Calcium-Magnesium Fluoride glasses containing Ho3+in (45- x):AlF2:15 BaF2:15 CaF2: 25 MgF2: xHo2O3 (where x=1, 1.5,2 mol %) have been prepared by melt-quenching method. The amorphous nature of the glasses was confirmed by xray diffraction studies. Optical absorption spectra were recorded at room temperature for all glass samples. The experimental oscillator strengths were calculated from the area under the absorption bands. Slater-Condon parameter (F2), Lande's parameter (ξ4f), Nephlauxetic ratio (β') and Bonding parameter (b½) have been computed. Using these parameters energies and intensities of these bands has been calculated. Judd-Ofelt intensity parameters Ωλ (λ=2, 4, 6) are evaluated from the intensities of various absorption bands of optical absorption spectra. Using these intensity parameters various radiative properties like spontaneous emission probability, branching ratio, radiative life time and stimulated emission cross–section of various emission lines have been evaluated.

Keywords:

ABCMF Glasses, Optical Properties, Judd-Ofelt Theory, Rare earth ions.

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