A study of NIR emission and associated spectroscopic properties of Nd3+:P2O5+K2O+Al2O3+ZnF2 glasses for 1.06 μm laser applications

Photoluminescence and X‐Ray‐Induced Luminescence Behavior of Sm2O3‐Doped Oxyfluoroborate Scintillating Glass for Radiation Detecting Material

“…The decreasing trend observed in V m for Sm 3+ :ANCB glasses is due to the interstitial position occupied by Sm 3+ ions as well as the compact structure effect in the glass network. [ 33,34 ] The ionic concentration of ( N i ) of glasses can be calculated using the relation [ 35,36 ] where, density ( d ), molecular weight ( W T ), weight ( y / x ) of Sm 3+ , and Avogadro's number ( N A ). In addition, the critical ET distance ( R c ) of Sm 3+ ‐activated ANCB glasses was evaluated using the following formula [ 35,36 ] where R c is defined as sensitizer/donor to activator/acceptor separation for which the rate of ET to the activator/acceptors is equal to the intrinsic decay rate of the sensitizer/donor.…”

“…7, the decay curve is single exponential for the 0.1 mol% of Sm 3+ ‐doped ANCB glass and turns into nonexponential behavior at higher concentration (≥0.5) of Sm 3+ . The non‐exponential decay curves are well‐fitted to an ExpDec 2 (double exponential) function [ 33,53 ] where I ( t ), I 0 are the emission intensity at time “ t ” and t = 0, respectively. A 1 and A 2 are constants, τ 1 and τ 2 are the short and long lifetimes for the exponential components, respectively.…”

“…As seen in Figure . 7, the decay curve is single exponential for the 0.1 mol% of Sm 3þ -doped ANCB glass and turns into nonexponential behavior at higher concentration (≥0.5) of Sm 3þ . The non-exponential decay curves are well-fitted to an ExpDec 2 (double exponential) function [33,53] Table 5. Emission peak positions (λ p , nm), radiative transition probabilities (A R , s À1 ), branching ratios, emission cross-sections (σ e  10 À22 cm 2 ) for the ANCBSm0.5 glass.…”

“…The decreasing trend observed in V m for Sm 3þ :ANCB glasses is due to the interstitial position occupied by Sm 3þ ions as well as the compact structure effect in the glass network. [33,34] The ionic concentration of (N i ) of glasses can be calculated using the relation [35,36]…”

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

“…It has been noted that as the concentration of neodymium ions increases, the emission intensity of the 4 F 3/2 → 4 I 11/2 transition increases up to 0.5 mol% Nd 2 O 3 and thereafter decreases. The concentration quenching effect may be to blame for this (12,13) . The emission intensity of oxyfluoride glasses is higher than that of oxide glasses.…”