Optical analysis of RE3+(RE = Pr3+, Er3+and Nd3+):cadmium lead boro tellurite glasses

This article reports on the optical characterization of Pr(3) (+) -, Er(3) (+) - and Nd(3) (+) -doped cadmium lead boro tellurite (CLBT) glasses prepared using the melt quenching method. The visible-near infrared (Vis-NIR) absorption spectra of these glasses were analyzed systematically. On measuring the NIR emission spectra of Er(3) (+) :CLBT glasses, a broad emission band centered at 1536 nm ((4) I13 /2 → (4) I15 /2 ) was observed, as were three NIR emission bands at 900 nm ((4) F3 /2 → (4) I9 /2 ), 1069 nm ((4) F3 /2 → (4) I11 /2 ) and 1338 nm ((4) F3 /2 → (4) I13 /2 ) from Nd(3) (+) :CLBT glasses and an NIR emission band at 1334 nm ((1) G4 → (3) H5 ) from Pr(3) (+) :CLBT glasses at an excitation wavelength (λex ) of 514.5 nm (Ar(+) laser). Copyright © 2016 John Wiley & Sons, Ltd.