We present a new type of streak camera to measure the temporal shape of pulses in the extreme ultraviolet (XUV) region: A cloud of noble gas atoms is used as a photocathode. The first results at 57 nm show a time resolution of 10 ps. Modifications to improve the time resolution are discussed. Using a noble gas as a photocathode has the potential to decrease the temporal resolution of the streak camera in the XUV to less than 0.5 ps.

Rev. Sci. Instrum.

Warntjes, J. B. M, Gürtler, A, Osterwalder, A, Rosca-Pruna, F, Vrakking, M. J. J, & Noordam, L. D. (2001). Atomic streak camera operating in the extreme ultraviolet. Rev. Sci. Instrum., 72, 3205–3207.