Spatiotemporal characterization of single-order high harmonic pulses from time-compensated toroidal-grating monochromator

Motohiko Ito, Yoshimasa Kataoka, Tatsuya Okamoto, Mikio Yamashita, Taro Sekikawa
2010 Optics Express  
Extreme ultraviolet (XUV) single-order high harmonic pulses with 10 6 photons/pulse were separated from multiple harmonic orders by a time-compensated toroidal-grating monochromator consisting of a pair of toroidal gratings. The first grating separates the harmonic order and the second one compensates for the pulse-front tilt. The center photon energies were tunable between 42 and 23 eV. The separated single harmonic pulses were spatially and temporally characterized as having a spot size of 58
more » ... ± 3 µm at the focus, with a shortest pulse duration of 47 ± 2 fs. The developed XUV light source is versatile for application to time-and space-resolved spectroscopy.
doi:10.1364/oe.18.006071 pmid:20389628 fatcat:5qahtypinjbjrdcqk3ivpt54pq