Chin. Phys. Lett.  2002, Vol. 19 Issue (3): 334-337    DOI:
Original Articles |
Experimental Observation of Constructive Quantum Interference via Hybrid Excitation in an Na2-Na System
YANG Xi-Hua1;LI Yong-Fang2,3;SUN Zhen-Rong1;DING Liang-En1;WANG Zu-Geng1
1Key Laboratory of Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062 2Department of Physics, Xi’an JiaoTong University, Xi’an 710049 3Department of Physics, Shaanxi Normal University, Xi’an 710062
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YANG Xi-Hua, LI Yong-Fang, SUN Zhen-Rong et al  2002 Chin. Phys. Lett. 19 334-337
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Abstract We report on an experimental observation of constructive quantum interference between two atomic transition pathways 3P1/2-5S (or 4D) and 3P3/2-5S (or 4D) via equal-frequency hybrid excitation and collision-aided radiative excitation in an Na2-Na system. Through the special excitation processes, constructive quantum interference is realized for a Λ-type quantum-beat configuration with a widely-spaced doublet (about 17 cm-1) in the excited sodium atom driven by one laser. The dependences of quantum interference on the argon buffer gas pressure and sample temperature are also examined.
Keywords: 42.50.Gy      34.10.+x      32.80.-t     
Published: 01 March 2002
PACS:  42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)  
  34.10.+x (General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))  
  32.80.-t (Photoionization and excitation)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I3/0334
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YANG Xi-Hua
LI Yong-Fang
SUN Zhen-Rong
DING Liang-En
WANG Zu-Geng
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