Luminescent materials with the quantum efficiency (QE) higher than unity could be playing a
significant role in the progress of lighting industry and certain electronic display systems …

In this paper, the application of thermal lens and Z-scan techniques to the study of the
thermo-optical and spectroscopic properties of solid-state laser glasses is described. The …

Covers the advantages of using photothermal spectroscopy over conventional absorption
spectroscopy, including facilitating extremely sensitive measurements and non-destructive …

Sunlight that is incident on the front surface of a luminescent solar concentrator (LSC) is
absorbed and subsequently re-emitted by luminescent materials. The resulting …

A method for measuring the photoluminescent quantum yields (PLQY) of luminescent
organic dyes is presented. The self-absorption probability calculated at different dye …

We present a new method based on thermal lens (TL) technique to determine the
fluorescence quantum efficiency, η, and thermo-optical coefficients of fluorescent materials …

Trivalent Tb-doped materials exhibit strong emission in the green and weak emission in the
UV-blue levels. Usually, this behavior is attributed to the cross relaxation (CR) process. In …

Fluorophosphate glasses in the compositional system 25BaF 2-25SrF 2-10Al (PO 3) 3-20AlF
3-(20-z) YF 3: zNdF 3 with z= 0.5, 1, 2, 4 and 8 mol% were prepared and characterized from …

The thermal-lens (TL) method was applied to a new phosphate glass doped with Nd3+ to
determine fluorescence quantum efficiency (η) and thermal properties such as: thermal …

In this work thermal lens spectrometry is applied to determine the temperature coefficient of
optical path length in several optical materials. Polymer, fluoride and low silica calcium …