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  • Received: Feb. 1, 2007

    Accepted: --

    Posted: Jun. 27, 2007

    Published Online: Jun. 27, 2007

    The Author Email: Guiyin Zhang (gyzhang65@yahoo.com.cn)

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    Guiyin Zhang, Yidong Jin. Dynamics mechanism of optical-optical double-resonant multiphoton ionization of nitrogen dioxide[J]. Chinese Optics Letters, 2007, 5(5): 249

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Chinese Optics Letters, Vol. 5, Issue 5, 249 (2007)

Dynamics mechanism of optical-optical double-resonant multiphoton ionization of nitrogen dioxide

Guiyin Zhang*, and Yidong Jin

Author Affiliations

  • College of Mathematics and Physics, North China Electric Power University, Baoding 071003

Abstract

The optical-optical double-resonant multiphoton ionization (OODR-MPI) spectrum of NO2 molecule in the 460-605 nm wavelength region of the probe photon is presented. The mechanism of the OODR-MPI of NO2 molecule is analyzed. The results show that the resonant features can be assigned to the transitions from the first 3s'sigma'g Rydberg intermediate resonant state to the final np'sigma'u Rydberg series. The ionization pathway is NO2(X2A1)-[3h'nu'1]->3s'sigma'g-[h'nu'2]->np'sigma'u-[h'nu'2 or autoionization]->NO2(+)+e. It is found that the converging potential of the np'sigma'u Rydberg series and the quantum defect of np orbit about NO2 are (78803+-14) cm^(-1) and 0.652+-0.014, respectively. The bending vibration frequency of 5p'sigma'u state is determined also.

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