Open AccessOptimised XUV holography using spatially shaped high harmonic beams
Author(s) -
D. J. Treacher,
David T. Lloyd,
Florian Wiegandt,
Kevin O’Keeffe,
S. M. Hooker
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.029016
Subject(s) - optics , extreme ultraviolet , holography , physics , pinhole (optics) , high harmonic generation , spatial light modulator , photon , fourier transform , harmonic , spatial frequency , laser , quantum mechanics
We present a novel method for controlling the transverse positions and relative powers of multiple high-order harmonic beams. A phase-only spatial light modulator is used to produce multiple infrared foci, the positions and intensities of which can be controlled programmably, enabling the generation and control of multiple HHG beams. To demonstrate the utility of this method we perform Fourier transform holography with separate illumination of the object and reference pinhole by a pair of HHG beams, which makes optimal use of the available photon flux. The programmable control of the spatial distribution of HHG beams demonstrated here offers new opportunities for experiments at extreme ultraviolet (XUV) wavelengths, particularly for photon intensive applications such as imaging.