Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 51: Poster: Quantum Optics and Photonics IV
Q 51.53: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Redoutensaal
XUV Microscopy with a Schwarzschild-Objective driven by high-harmonic generation — •Felix Wiesner1, Julius Reinhard1, Martin Wünsche1,2, Johann Jakob Abel1, Silvio Fuchs1,2, Jan Nathanael1, Christian Rödel2, and Gerhard Paulus1,2 — 1Institute of Optics and Quantum Electronics Jena, Germany — 2Helmholtz Institute Jena, Germany
We report on the development of an extreme ultraviolet light (XUV) microscope with a Schwarzschild objective (SSO). XCT is a 3D imaging technique, which is based on Optical Coherence Tomography and was realized using Synchrotron radiation sources [1] as well as a lab-scale high-harmonic XUV source [2,3]. The axial resolution of XCT reaches a few nanometers, whereas the lateral resolution is limited by the size of the focal spot, 23µm at present. To overcome this significant gap a special high-NA SSO is used. The SSO consist of two spherical mirrors and offers almost aberration-free imaging with a NA of 0.2 supporting lateral resolutions down to 70nm. The two optics have a broadband multilayer coating, a prerequisite of XCT. To test the imaging properties of the SSO, a transmission light microscopy setup has been built. With this setup, a pinhole and diffractive gold gratings were investigated as well as gold nanoparticles, carbon nanotubes and cancer cells. In first experiments, resolutions below 1µm have been reached. A combination with XCT is possible for thin samples and allows non-destructive 3D imaging with nanometer resolution in all dimensions. [1] Fuchs et al., Scientific Reports 6, 20658 (2016) [2] Fuchs et al., Optica 4, 903 (2017) [3] Wünsche et al., Optics Express 25, 6936 (2017)