Regensburg 2016 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 48: Poster Session II
MA 48.18: Poster
Donnerstag, 10. März 2016, 15:00–18:00, Poster B1
Towards Ultrafast Magnetic Imaging Using Circularly Polarized High Harmonics — •Christina Nolte1, Sergey Zayko2, Sascha Schäfer2, Daniel Steil1, Manfred Albrecht3, Stefan Mathias1, and Claus Ropers2 — 1I. Physikalisches Institut, Universität Göttingen — 2IV. Physikalisches Institut, Universität Göttingen — 3Institut für Physik, Universität Augsburg
The recently demonstrated generation of circularly polarized extreme ultraviolet (XUV) radiation from high-harmonic light sources [1,2] in combination with lensless imaging techniques opens a new and powerful route for the spatially resolved study of ultrafast magnetization dynamics [3]. Extending a recent implementation of high-harmonic-based coherent diffractive imaging [4], we will present first results employing circularly polarized harmonics in the 40-70 eV photon energy range.
[1] O. Kfir et al., Nature Photonics 9, 99-105 (2015)
[2] D. Hickstein et al., Nature Photonics 9, 743-750 (2015)
[3] S. Mathias et al., JESRP 189, 164-170 (2013)
[4] S. Zayko et al., Optics Express 23, 19911-19921 (2015)