Fig. 4

Simulated TOF profiles for (a) different spatial spreads Δ x and (b) different relative velocity spreads Δ v/v of the initial OH beam. All simulations were performed assuming identical initial OH beam densities. The left column shows the TOF profiles when the Stark decelerator is operated in guiding mode (phase angle Φ ₀=0°). The right column depicts the TOF profiles as OH beams are decelerated down to 35 m/s at a phase angle of 62.4°. The initial molecular beam velocity is chosen as 450 m/s which is typical for Kr as carrier gas