中国物理B ›› 2008, Vol. 17 ›› Issue (8): 2914-2918.doi: 10.1088/1674-1056/17/8/026

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Quantum coherent control of two-photon transitions by square phase-modulation

张诗按, 王祖赓, 孙真荣   

  1. State Key Laboratory of Precision Spectroscopy, \Department of Physics, East China Normal University, Shanghai 200062, China
  • 收稿日期:2007-12-25 修回日期:2008-01-16 出版日期:2008-08-20 发布日期:2008-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10574046), National Key Project for Basic Research of China (Grant Nos 2006CB806006 and 2006CB921105), Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), Program for New Century Excellent Talents in University (NCET-04-0420), the Doctoral Program of High Education (Grant No 20050269011), Phosphor Program sponsored by Shanghai Science and Technology Committee (Grant No 06QH14003).

Quantum coherent control of two-photon transitions by square phase-modulation

Zhang Shi-An(张诗按), Wang Zu-Geng(王祖赓), and Sun Zhen-Rong(孙真荣)†   

  1. State Key Laboratory of Precision Spectroscopy, \Department of Physics, East China Normal University, Shanghai 200062, China
  • Received:2007-12-25 Revised:2008-01-16 Online:2008-08-20 Published:2008-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10574046), National Key Project for Basic Research of China (Grant Nos 2006CB806006 and 2006CB921105), Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), Program for New Century Excellent Talents in University (NCET-04-0420), the Doctoral Program of High Education (Grant No 20050269011), Phosphor Program sponsored by Shanghai Science and Technology Committee (Grant No 06QH14003).

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摘要： A femtosecond laser pulse can be tailored to control the two-photon transitions using the ultra-fast pulse-shaping technique. This paper theoretically and experimentally demonstrates that two-photon transitions in molecular system with broad absorption line can be effectively controlled by square phase-modulation in frequency domain, and the influence of all parameters characterizing the square phase-modulation on two-photon transitions is systemically investigated and discussed. The obtained results have potential application in nonlinear spectroscopy and molecular physics.

Abstract: A femtosecond laser pulse can be tailored to control the two-photon transitions using the ultra-fast pulse-shaping technique. This paper theoretically and experimentally demonstrates that two-photon transitions in molecular system with broad absorption line can be effectively controlled by square phase-modulation in frequency domain, and the influence of all parameters characterizing the square phase-modulation on two-photon transitions is systemically investigated and discussed. The obtained results have potential application in nonlinear spectroscopy and molecular physics.

Key words: two-photon transitions, coherent control, pulse shaping

中图分类号:  (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

  • 42.50.Hz
33.80.Wz (Other multiphoton processes) 42.60.Fc (Modulation, tuning, and mode locking)