Improving the rising edge of the temporal contrast of PHELIX by spatial conditioning in an unfolded stretcher
Simon Roeder,
Yannik Zobus,
Zsuzsanna Major
et al.
Abstract:We showcase a new, unfolded stretcher setup at the PHELIX facility that incorporates a beam expander for spatial conditioning of the rising edge in the temporal contrast. With this purely optical technique we are able to improve the rising-edge contrast from 10-6 achieved with the standard, folded stretcher at PHELIX to 5.7⋅10−10±0.2⋅10−10 at −30 ps. By comparing between measurements and model predictions based on spectral-phase and -amplitude effects, we are able to determine limiting factors at PHELIX. Those… Show more
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