Spectrally resolved wavefront characterization of broadband ultrafast high-harmonic pulses
1 Advanced Research Center for Nanolithography, Science Park 110, 1098 XG Amsterdam, The Netherlands
2 Department of Physics and Astronomy, and Laserlab, Vrije Universiteit, De Boelelaan 1081 HV Amsterdam, The Netherlands
* Corresponding author: firstname.lastname@example.org
Published online: 16 April 2019
We demonstrate a sensor that measures wavefronts of multiple extreme ultraviolet wavelengths simultaneously. By incorporating transmission gratings into the apertures of a Hartmann mask, we can record wavefront information for series of discrete harmonics from a high-harmonic generation source in a single camera exposure, without the need for scanning parts. Wavefronts of up to nine high harmonics at 25-49 nm wavelength are retrieved, and ultrafast spatiotemporal couplings can be detected.
© The Authors, published by EDP Sciences, 2019
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