JOES: An application software for Judd-Ofelt analysis from Eu3+ emission spectra.

Abstract In this paper we will be presenting JOES (Judd-Ofelt from Emission Spectra), an application software for calculation of the Judd-Ofelt intensity parameters and derived quantities from the emission spectra of Eu3+ doped materials. The program is written to be user friendly and it requires no previous experience in the field of study. This Free and Open-Source program written in JAVA, works on Windows, Linux and MAC OS operating systems. Program has been tested on three europium doped oxides with good luminescent properties: TiO 2 :Eu3+, ZrO 2 :Eu3+ and Nb 2 O 5 :Eu3+. We wish to give to the researchers this theoretical tool which can make the calculations easier, faster and more reliable. Graphical abstract fx1 [ABSTRACT FROM AUTHOR]