Abstract
Coherent diffraction imaging (CDI) at wavelengths in the extreme ultraviolet range has become an important tool for nanoscale investigations. Employing laser-driven high harmonic sources allows for lab-scale applications such as cancer cell classification and phase-resolved surface studies in reflection geometry. The excellent beam properties support a spatial resolution below the wavelength, i.e., close to the Abbe limit. Unfortunately, the usually low photon flux of HHG sources limits their applicability. Recent advances in ultrafast fiber laser development cumulated in sources delivering average powers approaching the milliwatt level in the extreme ultraviolet. In comparison, a tabletop soft X-ray laser driven by moderate pump energies was recently employed for CDI featuring excellent temporal coherence and extraordinary high flux allowing for single-shot imaging.
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Acknowledgements
This work was partly supported by German Federal Ministry of Education and Research BMBF German–Korean collaboration program (01DR12011), the Korea–Germany program (Korean NRF 2010-00633, BK21), BMBF contracts 13N12082 “NEXUS” and 05P2015 “APPA,” LaserLab Europe (INREX), EFRE (ProFit), the European Union’s Seventh Framework Program (FP7/2007–2013)/ERC Grant agreement no [240460] “PECS,” by the European Research Council under the ERC grant agreement no. [617173] “ACOPS” and the German Research Foundation (DFG) via the Excellence Cluster “Munich-Centre for Advanced Photonics” (MAP, EXC 158). M. Zürch acknowledges support from the Humboldt Foundation.
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Zürch, M. et al. (2018). Coherent Diffraction Imaging with Tabletop XUV Sources. In: Kawachi, T., Bulanov, S., Daido, H., Kato, Y. (eds) X-Ray Lasers 2016. ICXRL 2016. Springer Proceedings in Physics, vol 202. Springer, Cham. https://doi.org/10.1007/978-3-319-73025-7_35
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DOI: https://doi.org/10.1007/978-3-319-73025-7_35
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