Energy transfer luminescence in (Eu3+,Nd3+) : tellurite glass

Abstract Here, we bring out an infrared transmitting new optical glass based on TeO2 added with AlF3 and LiF, containing dual rare earth ions (Eu3+,Nd3+) as the dopants with a purpose to examine their luminescence and also the decay times pertaining to a prominent transition of Eu3+ (5D0 → 7F2 at 615 nm) as a function of temperature both in the presence and absence of Nd3+ ions. The energy transfer rates (Wtr), critical distances (R0) and transfer efficiencies (ηtr) have been evaluated based on the measured lifetime data of this glass.