Optical thermometry and broad infrared luminescence in highly sensitized TBO glass

V Kesarwani, VK Rai - Optics & Laser Technology, 2022 - Elsevier
This work mainly reports the optical thermometry based on frequency upconversion and the
infrared luminescence of Er 3+-Yb 3+ codoped TeO 2-B 2 O 3 (TBO) glasses prepared via …

Fluorescence intensity ratio technique and its reliability

V Kesarwani, VK Rai - Methods and Applications in …, 2022 - iopscience.iop.org
The present article reports the optical absorption and upconversion (UC) studies of 1.0
mol% Er 3+/2.0 mol% Yb 3+ doped/codoped glasses prepared by melt-quenching …

Dual-Mode Light Emission and Dynamic Studies of Er3+/Yb3+-Doped NaLa(MoO4)2 Phosphor for Optical Thermometry Operating from Cryogenic to above Room …

S Tomar, NK Mishra, V Kesarwani, VK Rai… - ACS Applied Optical …, 2024 - ACS Publications
Dual-mode light-emitting phosphors play a crucial role in advanced technologies and serve
as optical thermometers in both cryogenic and high-temperature environments. This study …

Effect of adding TiO2 as modifier on the optical thermometric ability of tellurium tungstate glass

V Kesarwani, VK Rai - Materials Research Bulletin, 2023 - Elsevier
This work investigates the effect of incorporating TiO 2 on the optical properties of the Er
3+/Yb 3+ doped/codoped tungstate-based tellurite (TW) glasses. The optical bandgap and …

Effect of ZnS nanoparticles on the spectroscopic transitions of Ho3+ ions in sol-gel silica matrix

D Kakoti, P Gogoi, P Dutta - Ceramics International, 2023 - Elsevier
Abstract ZnS NPs and Ho 3+ co-doped silica matrices are prepared by room temperature sol-
gel method. The fabricated matrices are characterized structurally by X-ray diffractometry …

Effect of ligands PPIA and TOPO on radiative behaviour of Eu3+ ions in sol-gel silica matrix

N Rajkonwar, P Gogoi, D Kakoti, N Dehingia… - Journal of …, 2022 - Elsevier
Eu 3+ singly doped and Eu 3+ co-doped with ligands PPIA and TOPO in silica matrix were
fabricated via sol-gel route and investigated by structural and spectroscopic techniques …

Effect of ZnS nanoparticles on the Judd-Ofelt and radiative parameters of Sm3+ ions in sol-gel silica matrix

D Kakoti, P Dutta, P Gogoi, N Dehingia… - Journal of …, 2019 - Elsevier
Sm 3+ singly doped and Sm 3+ co-doped with varying concentration of ZnS nanoparticles
(ZnS NPs) in silica matrix were fabricated via sol-gel route and investigated by various …

Ag NP enhanced photoluminescence study of Sm3+ ions in solgel silica glasses

N Dehingia, P Dutta, D Kakoti, A Boruah… - Journal of Physics …, 2019 - iopscience.iop.org
Sm 3+ ions singly doped and Ag NPs co-doped with Sm 3+ ions for fixed concentrations of
both Ag and Sm 3+ ions in sol-gel silica glasses were fabricated and their spectroscopic …