Eur. Phys. J. Appl. Phys.
Volume 41, Number 1, January 2008
|Page(s)||87 - 90|
|Section||Instrumentation and Metrology|
|Published online||07 December 2007|
Measurements of quenching rate coefficients of YO molecule in A2Π1/2, A2Π3/2, and B2Σ+ states by helium, argon and oxygen from a solar induced fluorescence technique
PROMES-CNRS, Procédés Matériaux et Énergie Solaire, 7 Rue du Four Solaire, 66120 Font-Romeu, France
Corresponding author: email@example.com
Revised: 20 September 2007
Accepted: 28 September 2007
Published online: 7 December 2007
We measured in function of helium, argon, and oxygen gas pressure, the evolution of the intensities of the fluorescence spectra of YO molecule issuing from a liquid drop of yttrium oxide melted at the focus of a solar furnace. From this evolution and in a simplified approach assuming the independency of the three molecular systems of YO (A2Π1/2-X2Σ+, A2Π3/2-X2Σ+, B2Σ+-X2Σ+) we deduced, through the analysis of Stern-Volmer plots, a mean quenching rate coefficients of this molecule in these states by the above mentioned gases.
PACS: 52.70.Kz – Optical (ultraviolet, visible, infrared) measurements / 39.30.+w – Spectroscopic techniques
© EDP Sciences, 2007
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