Laser-induced photoionization of Ar2(3Σu+) at 308 nm

✍ Scribed by R.Glen Macdonald; F.C. Sopchyshyn

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 778 KB
• Volume: 140
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(87)80472-4

✦ Synopsis

Experimental evidence is provided to show that the Ar,( 'Z: ) excimer is photoionized by absorption of light at 308 nm. This direct photoionization of Ar2 ('C : ) was used to measure the distribution of atomic states belonging to the Ar( 3ps4p) electronic manifold produced in dissociative recombination of Ar: ('Xi ) at atmospheric pressure. It was found that electronically excited states, Ar( 2p,) and Ar(Zp,,), accounted for 96% of the excited state population of the Ar( 3p54p) contiguration produced in dissociative recombination. The Ar,( 'I;: ) state is also photodissociated directly at 308 nm producing electronically excited Ar atoms more energetic than the Ar( 3p54p) configuration.