Browsing by Author "Ruchka, Pavel"
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Item Open Access Effects of high-power laser radiation on polymers for 3D printing micro-optics(2023) Klein, Sebastian; Ruchka, Pavel; Klumpp, Thomas; Bartels, Nils; Steinle, Tobias; Giessen, HaraldItem Open Access Hybrid fiber-solid-state laser with 3D-printed intracavity lenses(2023) Angstenberger, Simon; Ruchka, Pavel; Hentschel, Mario; Steinle, Tobias; Giessen, HaraldItem Open Access Scatter-plate microscopy with spatially coherent illumination and temporal scatter modulation(2021) Ludwig, Stephan; Ruchka, Pavel; Pedrini, Giancarlo; Peng, Xiang; Osten, WolfgangScatter-plate microscopy (SPM) is a lensless imaging technique for high-resolution imaging through scattering media. So far, the method was demonstrated for spatially incoherent illumination and static scattering media. In this publication, we demonstrate that these restrictions are not necessary. We realized imaging with spatially coherent and spatially incoherent illumination. We further demonstrate that SPM is still a valid imaging method for scatter-plates, which change their scattering behaviour (i.e. the phase-shift) at each position on the plate continuously but independently from other positions. Especially we realized imaging through rotating ground glass diffusers.Item Open Access Towards fiber-coupled plasmonic perfect absorber superconducting nanowire photodetectors for the near- and mid-infrared(2023) Mennle, Sandra; Karl, Philipp; Ubl, Monika; Ruchka, Pavel; Weber, Ksenia; Hentschel, Mario; Flad, Philipp; Giessen, Harald