(a) Cross-sectional view of a pair of parallel charged stainless steel rods and two grounded metal plates; (b) sketch map of the experimental apparatus and the locations of each element in front of the nozzle and their sizes. PV, SK, HP, GMP, and S stand for pulse valve, skimmer, hexapole, grounded metal plate, and sampling hole, respectively.
The relationships between the guiding voltage applied on the rods and the electric field distributions in (a) the direction and (b) the direction for , , and under the different guiding voltages.
(a) Time-of-flight mass spectra of pulsed molecule seeded in argon ionized by pulsed of laser with a pulse energy of . (b) The relative ion signal intensity of the guided molecules vs the transverse position for , 5.0, 10.0, 15.0, 20.0, and when , , , and . The symbols (black or hollow squares, circles, and triangles) with the corresponding error bars represent the experimental data points under the different guiding voltages, and the solid lines are the theoretically fitted curves by Gaussian profile.
The dependence of the relative guiding efficiency of cold molecules on the guiding voltage for , , , and . The black squares are the experimental data points including the corresponding error bars, the black triangles represent the Monte Carlo simulated results, while the solid line is the calculated results based on our theory model.
The dependence of the transverse temperature of the guided molecular beam on the guiding voltage for , , , and , the black squares represent the experimental data, including the corresponding error bars, and the solid line is the theoretically fitted curve.
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