Resonance-enhanced multi-photon ionization spectrum of NO in 575-680 nm wavelength region  

作　　者：张贵银 靳一东 张连水 

机构地区：[1]College of Mathematics and Physics North China Electric Power University [2]College of Physics Science and Technology Hebei University

出　　处：《Chinese Optics Letters》2006年第8期439-441,共3页中国光学快报（英文版）

基　　金：This work was supported by the Doctor Science Research Foundation of Hebei Province under Grant No. 05547001D-3.

摘　　要：The multi-photon ionization spectrum of NO in the wavelength region of 575 680 nm is obtained with an optical parameter generator and amplifier （OPG/OPA） pumped by a picosecond Nd：YAG laser as radiation source. The banded structure of the spectrum indicates that NO molecule is ionized in resonant manner and the peaks of the spectrum are assigned to the transition of NO molecule from the ground electronic state to A^2∑ （v＇= 0, 1, 2,3）, E^2∑ （v＇= 0, 1, 2）, F^2△ （v＇= 0, 1,2, 3） and H^2∑ （v＇= 0, 1, 2） intermediate resonant ones. The molecule constants about NO （A^2∑, E^2∑, F^2△, H^2∑） states are calculated from the center wavelength of the spectrum. It is also found that owing to the special electron configuration of NO, this molecule does not follow the normal transition selection rule of the diatomic molecule during the multi-photon process.The multi-photon ionization spectrum of NO in the wavelength region of 575 680 nm is obtained with an optical parameter generator and amplifier （OPG/OPA） pumped by a picosecond Nd：YAG laser as radiation source. The banded structure of the spectrum indicates that NO molecule is ionized in resonant manner and the peaks of the spectrum are assigned to the transition of NO molecule from the ground electronic state to A^2∑ （v＇= 0, 1, 2,3）, E^2∑ （v＇= 0, 1, 2）, F^2△ （v＇= 0, 1,2, 3） and H^2∑ （v＇= 0, 1, 2） intermediate resonant ones. The molecule constants about NO （A^2∑, E^2∑, F^2△, H^2∑） states are calculated from the center wavelength of the spectrum. It is also found that owing to the special electron configuration of NO, this molecule does not follow the normal transition selection rule of the diatomic molecule during the multi-photon process.

关 键 词：Light amplifiers Parametric amplifiers PHOTONS RESONANCE 

分 类 号：TN015[电子电信—物理电子学]