中国物理B ›› 2010, Vol. 19 ›› Issue (11): 113208-113301.doi: 10.1088/1674-1056/19/11/113208
张晖, 张诗按, 王祖赓, 孙真荣
Zhang Hui(张晖), Zhang Shi-An(张诗按), Wang Zu-Geng(王祖赓), and Sun Zhen-Rong(孙真荣)†
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.
中图分类号: (Calculations and mathematical techniques in atomic and molecular physics)