SAMOP 2023 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 7: Poster I
Q 7.11: Poster
Monday, March 6, 2023, 16:30–19:00, Empore Lichthof
Pseudo Thermal Light Source in the XUV for Diffraction Imaging — •Jonas Musall1, Chris Sträche1, Philip Mosel1, Sven Fröhlich1, David Theidel2, Hamed Merdji2, Uwe Morgner1, and Milutin Kovacev1 — 1Institute of Quantum Optics, Cluster of Excellecnce PhoenixD and Quantum Frontiers, Leibniz University Hanover, Welfengarten 1, 30167 Hanover, Germany — 2LOA, ENSTA ParisTech, CNRS, Ecole Polytechnique, UMR 7639, 828 Boulevard des Maréchaux, 91120 Palaiseau, France
Coherent diffraction imaging (CDI) is a widely-used approach for nanoscale imaging. Besides its frequent use at synchrotron facilities, developments in laser-driven high harmonic sources have made it available on a smaller scale. A less explored possibility is the use of incoherent radiation for diffraction imaging as presented just recently [1]. This would allow a large number of compact sources in the X-ray range to be used for diffraction imaging. We are developing a method to control the degree of coherence in harmonics at 13 nm to investigate the transfer from coherent to incoherent imaging. To achieve this, the harmonic beam is scattered on different densities and sizes of nanoparticles. Additionally, the generated incoherent light can yield useful information on the initial coherent light source, such as the spot size and temporal pulse width [2].
[1] Classen, Anton et al. in: Physical Review Letters 119 (2017), Issue 5 [2] Tamasaku, Kenji et al. in: Journal of Synchrotron Radiation 26 (2019), No. 6