Chin. Phys. Lett.  2001, Vol. 18 Issue (6): 774-775    DOI:
Original Articles |
Application of Laser Magnetic Resonance Spectroscopy to the Measurement of Electric Dipole Moment of Free Radicals
LIU Yu-Yan1,2,3;GUO Yuan-Qing2;HUANG Guang-Ming2,3;LIN Jie-Li2;DUAN Chuan-Xi2;LI Feng-Yan2;LI Jin-Rui2
1Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062 2The State Key Laboratory of Magnetic Resonance and Atomic & Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 3Department of Physics, Huazhong Normal University, Wuhan 430070
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LIU Yu-Yan, GUO Yuan-Qing, HUANG Guang-Ming et al  2001 Chin. Phys. Lett. 18 774-775
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Abstract An intracavity CO laser magnetic resonance spectrometer with homogeneous dc electric field applied via a pair of parallel Stark plates in the absorption cell is used to measure the electric dipole moments of free radicals. Taking advantage of high sensitivity and high resolution of this technique and the Stark effect, highly-resolved saturated absorption spectra of v = 1-0 transition of 15N16O in the ground state X2II3/2 have been successfully observed in the presence of a low electric field. The electric dipole moment of NO in the electronic ground state is determined as μ = 0.1566 ± 14 D (Debye) from the analysis of the observed spectra, confirming that, combined with the Stark field, the laser magnetic resonance technique can be an effective and reliable approach for the precise measurement of electric dipole moments of free radicals, especially the unstable ones.
Keywords: 42.62.Fi      33.15.Kr      33.55.Be     
Published: 01 June 2001
PACS:  42.62.Fi (Laser spectroscopy)  
  33.15.Kr (Electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility)  
  33.55.Be  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2001/V18/I6/0774
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LIU Yu-Yan
GUO Yuan-Qing
HUANG Guang-Ming
LIN Jie-Li
DUAN Chuan-Xi
LI Feng-Yan
LI Jin-Rui
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