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Coherent control of non-resonant two-photon transition in molecular system |
Zhang Hui(张晖), Zhang Shi-An(张诗按), Wang Zu-Geng(王祖赓), and Sun Zhen-Rong(孙真荣)† |
State Key Laboratory of Precision Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062, China |
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Abstract In this paper, we study theoretically and experimentally the coherent control of non-resonant two-photon transition in a molecular system (Perylene dissolved in chloroform solution) by shaping the femtosecond pulses with simple phase patterns (cosinusoidal and $\pi$ phase step-function shape). The control efficiency of the two-photon transition probability is correlated with both the laser field and the molecular absorption bandwidth. Our results demonstrate that, the two-photon transition probability in a molecular system can be reduced but not completely eliminated by manipulating the laser field, and the control efficiency is minimal when the molecular absorption bandwidth is larger than twice the laser spectral bandwidth.
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Received: 27 January 2010
Revised: 04 March 2010
Accepted manuscript online:
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PACS:
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31.15.-p
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(Calculations and mathematical techniques in atomic and molecular physics)
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33.80.-b
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(Photon interactions with molecules)
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Fund: Project supported by Shanghai Leading Academic Discipline Project (Grant No. B408), National Key Program for Basic Research of China (Grant Nos. 2006CB806006 and 2006CB921105), Ministry of Education of China (Grant No. 30800), and Shanghai Municipal Science and Technology Commission (Grant Nos. 07DZ22025, 09142200501 and 09ZR1409300). |
Cite this article:
Zhang Hui(张晖), Zhang Shi-An(张诗按), Wang Zu-Geng(王祖赓), and Sun Zhen-Rong(孙真荣) Coherent control of non-resonant two-photon transition in molecular system 2010 Chin. Phys. B 19 113208
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