Multiphoton ionization: a method for characterizing molecular beams and beam reaction products

✍ Scribed by D.L. Feldman; R.K. Lengel; R.N. Zare

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 466 KB
• Volume: 52
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)80477-6

✦ Synopsis

The technique of multiphoton ionization is applied to Naz in an effusive and a supersonic bc.un to Lh~ractcrlze the intcrnal state distribution of this molecule. A tunable dye laser is swept through the w.ivclen$h region of the Naz B-X system and positive ions are counted as a function of laser wavelength. Multiphoton ionization involving a real intcrmcdlatc state is also used to characterize the BaCl product formed in the beam-9s rextion Ba + HCI. This detection system can combine mass spectrometry with laser spectroscopy for the idcntitication and charxtcriration ot bcJm \pcc~cs. Advantages and drd\vbacks are discussed.