Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5459234 | Journal of Alloys and Compounds | 2017 | 26 Pages |
Abstract
This paper evaluates the spectroscopic properties of the Erbium (Er3+) ions doped magnesium zinc sulfophosphate glass system synthesized via melt-quenching method. Prepared glass samples are characterized using UV-Vis-NIR absorption and photoluminescence (PL) spectroscopy to determine the Er3+ ions concentration dependent spectral characteristics. The absorption spectra displayed nine prominent absorption bands aroused from the ground state (4I15/2) to the excited state (4I13/2, 4I11/2, 4I9/2, 4F9/2, 2H11/2, 4F7/2, 4F3/2, 2H9/2 and 4G11/2) transitions of Er3+ ion. The intensity parameters (Ω2,Ω4andΩ6) and radiative properties associated to the spectral transitions of Er3+ ion are calculated using Judd-Ofelt (JO) expressions. Room temperature PL spectra revealed two significant emission bands centered at 541 and 654 nm. Appearance of luminescence intensity quenching beyond 1 mol% of Er3+ is attributed to the cross-relaxation mechanism. The value of stimulated emission cross-section for 4S3/2â4I15/2 spectroscopic transition in Er3+ ion is found to be very high (85.8211 à 10â22 cm2). Present glass composition is demonstrated to be advantageous for various photonic applications.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
F. Ahmadi, R. Hussin, S.K. Ghoshal,