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Proceedings Paper

Investigation of Rydberg states of nitrogen dioxide with high-power laser
Author(s): GuiYin Zhang; Lianshui Zhang; Xiaofeng Han; Bo Sun
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Paper Abstract

A survey of the Rydberg states of NO2 accessed in optical-optical two-color double-resonant (OODR) manner by the technique of multi-photon ionization (MPI) spectroscopy is presented. The pump laser is the double-frequency output of a Nd:YAG laser. While the probe laser is an optical parameter generator and optical parameter amplifier (OPG/OPA) pumped by the triple-frequency output 355nm of the former. The OODR-MPI spectrum of NO2 is obtained by scanning the probe laser in the range of 465-535nm under the condition that the pump laser is unfocused and the probe laser is focused on the center of the pump laser beam. The ionization peaks could be attributed to E2u←A2B2←X2A1(1+2) resonant transitions. This means that NO2 molecule is excited to the appropriate level of the first excited A2B2 state by absorbing one pump laser (ω1) photon. Then from the first excited state it should take three probe photons (ω2) and via final resonant E2u state for the ionization. The bending vibration frequency of NO2 E2u state obtained from above ionization spectrum is (608.6±2.2)cm-1. It is consistent with the literature.

Paper Details

Date Published: 26 January 2005
PDF: 6 pages
Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.572699
Show Author Affiliations
GuiYin Zhang, Hebei Univ. (China)
North China Electric Power Univ. (China)
Lianshui Zhang, Hebei Univ. (China)
Xiaofeng Han, Hebei Univ. (China)
Bo Sun, Hebei Univ. (China)

Published in SPIE Proceedings Vol. 5627:
High-Power Lasers and Applications III
Dianyuan Fan; Ken-ichi Ueda; Jongmin Lee, Editor(s)

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