Judd-Ofelt analysis of thulium-doped alumino-silicate optical glass prepared by MCVD combined with nanoparticle doping

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F25%3A00640283" target="_blank" >RIV/67985882:_____/25:00640283 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43932370 RIV/00216208:11320/25:10509088

Výsledek na webu

<a href="https://doi.org/10.1016/j.jlumin.2025.121601" target="_blank" >https://doi.org/10.1016/j.jlumin.2025.121601</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlumin.2025.121601" target="_blank" >10.1016/j.jlumin.2025.121601</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Judd-Ofelt analysis of thulium-doped alumino-silicate optical glass prepared by MCVD combined with nanoparticle doping

Popis výsledku v původním jazyce

In this work, we present a comprehensive theoretical evaluation of Judd-Ofelt (JO) analysis for thulium-doped alumino-silicate glass in a wide range of compositions. The optical fiber preforms containing 5-10 mol. % Al2O3 and 0.1-1.3 mol. % Tm2O3 were prepared via the MCVD method combined with nanoparticle doping. The absorption spectra were measured, the absorption cross sections were evaluated and Judd-Ofelt (JO) analysis was carried out. The JO intensity parameters were found in the ranges 522 = (6.1-6.6)center dot 10-20 cm-2, 524 = (2.3-2.9)center dot 10-20 cm-2 and 526= (1.0-1.5)center dot 10-20 cm-2. These JO parameters, along with the calculated transition probabilities, branching ratios and radiative lifetimes showed relatively small variations across all measured samples. The calculated spectroscopic parameters may thus be used in theoretical calculations and simulations for materials in a wide range of compositions. Furthermore, the calculated radiative lifetime of the first excited level, 3F4, was around 4 ms for the nanoparticle-doped preforms. The fluorescence lifetime was then measured and found to decrease from 0.9 ms to 0.7 ms with increasing concentration, providing values of quantum efficiency in the 17-22 % range. These values are significantly higher than 10 % determined for a reference solution-doped optical fiber preform and from literature, demonstrating the beneficial contribution of the nanoparticle doping method on the resulting quantum efficiency.

Název v anglickém jazyce

Judd-Ofelt analysis of thulium-doped alumino-silicate optical glass prepared by MCVD combined with nanoparticle doping

Popis výsledku anglicky

In this work, we present a comprehensive theoretical evaluation of Judd-Ofelt (JO) analysis for thulium-doped alumino-silicate glass in a wide range of compositions. The optical fiber preforms containing 5-10 mol. % Al2O3 and 0.1-1.3 mol. % Tm2O3 were prepared via the MCVD method combined with nanoparticle doping. The absorption spectra were measured, the absorption cross sections were evaluated and Judd-Ofelt (JO) analysis was carried out. The JO intensity parameters were found in the ranges 522 = (6.1-6.6)center dot 10-20 cm-2, 524 = (2.3-2.9)center dot 10-20 cm-2 and 526= (1.0-1.5)center dot 10-20 cm-2. These JO parameters, along with the calculated transition probabilities, branching ratios and radiative lifetimes showed relatively small variations across all measured samples. The calculated spectroscopic parameters may thus be used in theoretical calculations and simulations for materials in a wide range of compositions. Furthermore, the calculated radiative lifetime of the first excited level, 3F4, was around 4 ms for the nanoparticle-doped preforms. The fluorescence lifetime was then measured and found to decrease from 0.9 ms to 0.7 ms with increasing concentration, providing values of quantum efficiency in the 17-22 % range. These values are significantly higher than 10 % determined for a reference solution-doped optical fiber preform and from literature, demonstrating the beneficial contribution of the nanoparticle doping method on the resulting quantum efficiency.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Luminescence

ISSN

0022-2313

e-ISSN

1872-7883

Svazek periodika

288

Číslo periodika v rámci svazku

DEC

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

121601

Kód UT WoS článku

001592529700001

EID výsledku v databázi Scopus

2-s2.0-105017548519