Eur. Phys. J. AP 21, 239-242 (2003)
https://doi.org/10.1051/epjap:2003007

Solar induced fluorescence spectra of YO: Measurements and simulation of the A²Π_3/2−X²Σ⁺ band system

IMP-CNRS, Institut de Science et de Génie des Matériaux et Procédés, BP 5, 66125 Font-Romeu, France

Corresponding author: badie@imp.cnrs.fr

Received: 26 September 2002
Revised: 7 November 2002
Accepted: 8 November 2002
Published online: 27 February 2003

Abstract

YO molecule in the vapor phase above Y₂O₃ melted at the focus of a solar furnace exhibit a fluorescence phenomenon induced by absorption of the incident solar photons. The diverse spectral profiles measured at various locations from the melted surface reflect the different temperatures in the gas phase. The comparison of the measured spectra with band simulation allows to give an estimation of the upper limit temperature of the gas phase in the vicinity of the hot front.