Crystal field parameters and optical parameters of nd3+ in sodium bismuth silicate glass

Abstract EN

Neodymium doped sodium bismuth silicate glasses were prepared by the melt quench technique.

Optical absorption spectra of the Nd3+ion in the present glassy systems were recorded in the UV-Vis-NIR region.

Taylor series expansion method was adopted for theoretical evaluation of various crystal field parameters such as the Slater-Condon (F2,F4,F6), spin orbit   4f  and Racah parameters (E1,E2,E3).

Oscillator strength and electric dipole line strength of the observed transitions were evaluated with the help of Judd-Ofelt (JO) theory.

Radiative transition probability (A), total radiative transition probability (At), radiative life time (rad), branching ratios () and integrated absorption (a) cross section for stimulated emission between the meta stable state 4F3/2 and 4IJ ( J= 15/2,13/2,11/2 and 9/2) levels were calculated using JO parameters.

Optical basicity of the glass was found to increase with the addition of bismuth.