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Author: search.filters.author.Jarucha, N.

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    Bright Green Emission of Tb3+ Doped Lithium Sodium Potassium Borate Glasses for Photonic Application
    (2023-01-01)
    Jarucha, N.
    ;
    Ruangtaweep, Y.
    ;
    Meejitpaisan, P.
    ;
    Kanthang, P.
    ;
    Wongdamnern, N.
    The melt-quenching approach was implemented to create terbium-doped lithium sodium potassium borate glasses (LNKBTb). Archimedes’ principle, absorption and luminescence spectra, including CIE chromaticity were used to characterize the properties of glasses. Terbium in glasses absorbs photon in the visible and near infrared ranges. The intense green emission at 544 nm was generated by the terbium <sup>5</sup>D<inf>4</inf> to <sup>7</sup>F<inf>5</inf> transition when excited with ultraviolet–visible (UV–Vis) light. The emission intensities of LNKBTb glasses increased with increasing terbium concentrations up to 4 mol%, after which they decreased, resulting in the concentration quenching effect, whereas decay time decreases as Tb<inf>2</inf>O<inf>3</inf> content increases. In CIE 1931, the overall color of emission is green. May bring can continue to develop to use as a photonic material in green light sources and lasers.
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    Effect of Eu2O3 Concentrations Doped Li-Na-K Borate Glasses on Luminescence Properties for Red Emission Material
    (2023-01-01)
    Jarucha, N.
    ;
    Ruangtaweep, Y.
    ;
    Meejitpaisan, P.
    ;
    Nawarat, P.
    ;
    Kanthang, P.
    This paper investigated the europium-doped lithium sodium potassium borate glasses (LNKBEu). Glass was made using a melt-quenching technique with a range of europium doping concentrations ranging from 0.0 to 5.0 mol%. The absorption spectra showed that photons in the visible light and near infrared ranges were absorbed by the LNKBEu glasses. Photon absorption at 394 nm can excite the mirror to emit a number of photons in the VIS region, such as 590, 613, 652, and 701 nm. The results showed that 3.0 mol% was the optimal concentration of LNKBEu glass. Therefore, 3.0LNKBEu glass was studied using Judd-Ofelt (JO) analysis, which revealed an interesting possibility of its use. This glass is a high power red laser device.
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