,Weak Electrostatic Field Orientation of Cold KRb Molecules Enhanced by a Shaped Laser Pulse

• 作 者: HUANG Yun-Xia XU Shu-Wu YANG Xiao-Hua
• 机 构: School of Science, Nantong University, Nantong 226000“,”State Key Laboratory of Precision Spectrosco
• 出 处: 中国物理快报（英文版）
• 发表日期: 2013年8期

We theoretically investigate the orientation of the cold KRb molecules in a weak electrostatic field assisted by a shaped laser pulse.The results show that the slow tu-on and rapid tu-off laser pulse can enhance the molecular orientation of KRb significantly,and a high degree of molecular orientation of more than 0.9 can be obtained when the electrostatic field is as low as 3kV/cm.In addition,the influences of the electrostatic field strength and the parameters of the laser pulse are studied in detail.