Coherent control of non-resonant two-photon transition in molecular system

doi:10.1088/1674-1056/19/11/113208

中国物理B ›› 2010, Vol. 19 ›› Issue (11): 113208-113301.doi: 10.1088/1674-1056/19/11/113208

Coherent control of non-resonant two-photon transition in molecular system

张晖, 张诗按, 王祖赓, 孙真荣

State Key Laboratory of Precision Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062, China

收稿日期:2010-01-27 修回日期:2010-03-04 出版日期:2010-11-15 发布日期:2010-11-15
基金资助:
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).

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

Received:2010-01-27 Revised:2010-03-04 Online:2010-11-15 Published:2010-11-15
Supported by:
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).

摘要/Abstract

摘要： 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 π 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.

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.

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

中图分类号: (Calculations and mathematical techniques in atomic and molecular physics)

31.15.-p

33.80.-b (Photon interactions with molecules)

张晖, 张诗按, 王祖赓, 孙真荣. Coherent control of non-resonant two-photon transition in molecular system[J]. 中国物理B, 2010, 19(11): 113208-113301.

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[J]. Chin. Phys. B, 2010, 19(11): 113208-113301.

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Coherent control of non-resonant two-photon transition in molecular system

Coherent control of non-resonant two-photon transition in molecular system

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