Abstract The optical—optical double-resonant multiphoton ionization (OODR-MPI) technique has been applied to the study of the Rydberg states of nitrogen dioxide. The results show that, although the OODR-MPI spectra of NO2 are composed of regular progression bands at different pump laser intensities, their ionization pathways are different. The NO2 molecule is ionized through the (3+1+1) double-resonant process as the pump laser intensity is in a high value, or else it is through the (1+2+1) process. The final resonant states in the two ionizing processes have been attributed to different Rydberg states.
Received: 22 December 2003
Revised: 29 November 2004
Accepted manuscript online:
PACS:
33.80.Rv
(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
(Autoionization, photoionization, and photodetachment)
Fund: Project supported by the Natural Science Foundation of Hebei Province, China (Grant No 102090).
Cite this article:
Zhang Gui-Yin (张贵银), Zhang Lian-Shui (张连水), Sun Bo (孙博), Han Xiao-Feng (韩小峰), Yu Wei (于威) Optical—optical double-resonant multiphoton ionization spectra of Rydberg states of nitrogen dioxide 2005 Chinese Physics 14 524
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