title: Experimental demonstration of a controllable electrostatic molecular beam splitter.
abstract: We experimentally demonstrate a controllable electrostatic beam splitter for guided ND3 molecules with a single Y-shaped charged wire and a homogeneous bias field generated by a charged metallic parallel-plate capacitor. We study the dependences of the splitting ratio R of the guided ND3 beam and its relative guiding efficiency η on the voltage difference between two output arms of the splitter. The influences of the molecular velocity v and the cutting position L on the splitting ratio R are investigated as well, and the guiding and splitting dynamic processes of cold molecules are simulated. Our study shows that the splitting ratio R of our splitter can be conveniently adjusted from 10% to 90% by changing ΔU from -6  kV to +6  kV, and the simulated results are consistent with our experimental ones.
authors.affiliation: State Key Laboratory of Precision Spectroscopy, Department of physics, East China Normal University, Shanghai 200062, People's Republic of China.
authors.forename: Lianzhong
authors.initials: L
authors.lastname: Deng
authors.forename: Yan
authors.initials: Y
authors.lastname: Liang
authors.forename: Zhenxing
authors.initials: Z
authors.lastname: Gu
authors.forename: Shunyong
authors.initials: S
authors.lastname: Hou
authors.forename: Shengqiang
authors.initials: S
authors.lastname: Li
authors.forename: Yong
authors.initials: Y
authors.lastname: Xia
authors.forename: Jianping
authors.initials: J
authors.lastname: Yin