Magnetic field effect on highly excited states near ionization potential of nitric oxide

✍ Scribed by Ken Takazawa

• Publisher: Institute of Physics and National Institute of Materials Science
• Year: 2003
• Tongue: English
• Weight: 315 KB
• Volume: 4
• Category: Article
• ISSN: 1468-6996
• DOI: 10.1016/s1468-6996(03)00046-9

✦ Synopsis

Fluorescence excitation spectra due to the A 2 S-X 2 P transition of gaseous nitric oxide (NO) were measured in magnetic fields, H; ranging from 0 # H # 10 T. Lines in the observed spectra were assigned by using quantum mechanical calculations. Based on the assignment, two-color resonance-enhanced multiphoton ionization spectra via a single Zeeman sublevel in the A state were measured to observe the effect of magnetic fields on electronic states near the ionization potential (IP). Complicated structures due to strong n-and l-mixing in highly excited Rydberg states were observed below the IP. It was found that new resonance appears above the IP for H $ 4 T. By using a semi-classical calculation, this resonance was assigned to the quasi-Landau resonance, which was observed for the first time in molecules.