Development of Eu³⁺-Doped Oxyfluoride Glass for Active Laser Medium

Abstract

In this work, Eu³⁺-doped barium sodium borate oxide and oxyfluoride glasses were fabricated by melt-quenching technique for investigated their physical, optical, photoluminescence and radiative properties. The emission spectra, observed under the 394 nm, show the emission band corresponding to the transitions of ⁵D₀→⁷F₁ (590 nm), ⁷F₂ (613 nm), ⁷F₃ (652 nm) and ⁷F₄ (701 nm). The most intense emission band is the ⁵D₀→⁷F₂ transition at 613 nm. The emission light is shown the reddish-orange color according to the framework of CIE 1931 color space. The Judd-Ofelt analysis confirmed the potential for using the glass samples in this work for use as photonic applications. The results from the emission spectra and radiative properties show that the oxyfluoride glass sample has more lasing potential than the oxide glass sample.

Keywords:

• Borate glass
• europium
• photoluminescence
• Judd-Ofelt

Acknowledgments

The authors wish to express our gratitude to Suan Sunandha Rajabhat University (SSRU) and Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University (NPRU). The Judd-Ofelt analysis software was provided by Prof. C.K. Jayasankar, Sri Venkateswara University, India.

Disclosure Statement

No potential conflict of interest was reported by the author(s).