Abstract
We analyze the time response of single-grating monochromators for application to extreme-ultraviolet ultrashort pulses. It is shown that time-preserving monochromators can be realized in a single-grating configuration if the number of illuminated grooves is the minimum for a given resolution and the grating time response is close to the Fourier limit for such a resolution. Two different grating configurations are compared: the classical diffraction mount (CDM) and the off-plane mount (OPM). We shown that the CDM is preferred for single-grating monochromators with relatively long time responses, i.e., , while the OPM is suitable for ultrashort time responses in the range to realize femtosecond time-preserving monochromators.
© 2010 Optical Society of America
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