Photodissociation of Ozone at 248 nm and Vacuum Ultraviolet Laser-Induced Fluorescence Detection of O(¹D)

Abstract

Ozone molecules, O³, were photodissociated in the presence of N² at 248 nm (KrF laser) to O(¹D)+ O₂(¹∆). The O(¹D) atoms were detected by generating vacuum ultraviolet laser-induced fluorescence (VUV LIF) for the 3s¹D⁰ -²p ¹D transition at 115.2 nm. The 115.2 nm probe laser was generated by frequency tripling (ω vuv=3ω) of the 345.6 nm PTP dye laser in a Xe gas cell.