Fig. 15

Measurements of reflected H Rydberg atoms. a Individual H ⁺ time of flight distributions recorded after pulsed electric field ionisation of atoms located between electrodes 1 to 4 in Fig. 14(a) at the times indicated by the dashed vertical lines. Positive-going datasets were recorded with the mirror off, while the negative-going, inverted datasets, were recorded with the mirror on. b Dependence of the mean longitudinal position of the cloud of Rydberg atoms, with respect to the position of photoexcitation, on the time delay before pulsed electric field ionisation as extracted from the data in (a) with the mirror off (open red circles), and on (filled black circles). From [116] and [150] with permission