The optical layout of soft X-ray grating compressors designed to provide both positive and negative group-delay dispersion (GDD) is discussed. They are tailored for chirped-pulse-amplification experiments with seeded free-electron laser sources. Designs with plane or concave gratings are discussed, depending on the sign of the GDD to be introduced.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5741120PMC
http://dx.doi.org/10.1107/S160057751701637XDOI Listing

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