Optical properties of selenite glasses

Nd3+‐Doped Lead Boro Selenate Glass: A New Efficient System for Near‐Infrared 1.06 μm Laser Emission

“…Other details of the procedure of evaluation of f cal can be found in a number of our earlier reports. [36][37][38][39][40] In short, the experimental oscillator strengths were obtained by calculating the areas under the corresponding absorption peaks as per the relation, namely, f ¼ 4.319 Â 10 À9Ã ∫ εðνÞdν, here ε (ν) is the molar absorptivity which is evaluated using 1 LC logðI 0 =IÞ, C is the Nd ions' concentration in mol%, L represents the thickness of the glass (in cm)), and log(I 0 /I) stands for optical density. Using these values of f expt , a set of equations were constructed with the values of ||U λ || 2 for each transition (as per the Equation (1)).…”

“…SeO 2 glasses are potential candidates for the applications in electrical and magnetooptical sensors, in catalysis and in a variety of semiconductor devices. These are also good infrared (IR) transmitters [ 1–3 ] and are being extensively used in photonic and non‐linear optical devices. However, selenium oxide is an incipient glass former.…”

Influence of nanosized defects on photoluminescence efficiency of Er3+ ions co‐doped with Au2O3 in a lead boroselenate glass ceramic system: a novel approach using positron annihilation lifetime spectroscopy

“…Due to these reasons, the selenium oxide glasses find several applications that include sensors (both electrical and optical), in nonlinear optical (NLO) devices, infrared (IR) transmitters, etc. [2] By adding PbO, a heavy metal oxide to this glass system, its density and refractive index can be increased further; as a result, the photoluminescence (PL) efficiency of the dopant RE ions is predicted to increase. [3,4] In the present study, we have added a minimal quantity of B 2 O 3 (10 mol%)to facilitate glass formation in the PbO-SeO 2 system.…”