Concentration dependent luminescence quenching of Er3+-doped zinc boro-tellurite glass

Structural and luminescence behaviour of Er3+ doped telluro-fluoroborate glasses

“…follow the trend as Ω 2 ˃Ω 6 ˃Ω 4 for all the prepared glasses [16]. The spectroscopic quality factor…”

“…Z.A.S. Mahraz et al [16] reported on the structural and concentration dependent luminescence behaviour of Er 3+ doped Zinc boro-tellurite glasses. K. Selvaraju et al [17] investigated the structural and visible luminescence properties of Er 3+ doped boro-tellurite glasses for green laser applications.…”

Spectroscopic and laser properties of Er3+ doped fluoro-phosphate glasses as promising candidates for broadband optical fiber lasers and amplifiers

“…6b along with the energy level diagram. The transition 4 S 3/2 → 4 I 15/2 is thermally coupled with the transition 2 H 11/2 → 4 I 15/2 at room temperature with the energy gap of 877 cm -1 , since this transition is considered as a single level [34]. It is observed that among the observed emissions transitions, the spectral transition 4 S 3/2 → 4 I 15/2 located at 554 nm is more intense one for all the prepared glasses.…”

Structural and spectroscopic behavior of Er3+/Yb3+ co-doped boro-tellurite glasses

“…The JO theory has been applied to understand the important radiative parameters such as transition probability (A), stimulated emission cross-section (σ P E ), branching ratios (β R ) and radiative lifetime (τ R ) for the 4 S 3/2 + 2 H 11/2 → 4 I 15/2 transition of the Er 3+ /Yb 3+ co-doped borotellurite glasses and the results are presented in Table 8 ) values of the present glasses are found to be higher than the reported Er 3+ doped boro-tellurite glasses [10,11,53] and among the prepared glasses the 1YbErBT glass exhibits higher stimulated emission cross-section value.…”

“…Borate based glasses have been extensively studied for the past few decades due to their special properties like high transparency, low melting point, high thermal stability, good rare earth ion solubility and ease of glass preparation which make them more suitable for noble optical device fabrication [10,11]. Addition of TeO 2 into the borate network enhances the glass quality with an improvement in transparency and refractive index.…”