Author/Authors :
Terschlüsen، نويسنده , , J.A. and Agهker، نويسنده , , M. and Svanqvist، نويسنده , , M. and Plogmaker، نويسنده , , S. and Nordgren، نويسنده , , J. and Rubensson، نويسنده , , J.-E. and Siegbahn، نويسنده , , H. and Sِderstrِm، نويسنده , , J.، نويسنده ,
Abstract :
In this experiment we used an 800 nm laser to generate high-order harmonics in a gas cell filled with Argon. Of those photons, a harmonic with 42 eV was selected by using a time-preserving grating monochromator. Employing a modified Mach–Zehnder type Fourier transform spectrometer for the VUV/XUV it was possible to measure the temporal coherence of the selected photons to about 6 fs. We demonstrated that not only could this kind of measurement be performed with a Fourier transform spectrometer, but also with some spatial resolution without modifying the XUV source or the spectrometer.
Keywords :
XUV , Fourier transform spectrometer , HHG , Temporal coherence , spatial coherence , Soft X-ray
