P
Piotr Patoka
Researcher at Free University of Berlin
Publications - 23
Citations - 789
Piotr Patoka is an academic researcher from Free University of Berlin. The author has contributed to research in topics: Fourier transform infrared spectroscopy & Synchrotron radiation. The author has an hindex of 14, co-authored 22 publications receiving 676 citations. Previous affiliations of Piotr Patoka include University of Strasbourg & Helmholtz-Zentrum Berlin.
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Journal ArticleDOI
Optical and Magnetic Properties of Hexagonal Arrays of Subwavelength Holes in Optically Thin Cobalt Films
Georgios Ctistis,Evangelos Th. Papaioannou,Piotr Patoka,J. Gutek,Paul Fumagalli,Michael Giersig +5 more
TL;DR: Experimental results on the optical, magnetic, as well as magneto-optic properties of hexagonal arrays of subwavelength holes in optically thin cobalt films demonstrate the ability to artificially control the magnetic and thus the Magneto-Optic properties in hole array structures.
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Near-field imaging and nano-Fourier-transform infrared spectroscopy using broadband synchrotron radiation
TL;DR: Scanning near-field optical microscopy with a spatial resolution below 100 nm is demonstrated by using low intensity broadband synchrotron radiation in the IR regime to perform nano-Fourier-transform infrared spectroscopy over a wide spectral range.
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Magneto-optic enhancement and magnetic properties in Fe antidot films with hexagonal symmetry
E. Th. Papaioannou,Vassilios Kapaklis,Piotr Patoka,Michael Giersig,Paul Fumagalli,Antonio García-Martín,Elías Ferreiro-Vila,Georgios Ctistis +7 more
TL;DR: In this article, the magneto-optic and magnetic properties of hexagonal arrays of holes in optically thin iron films are analyzed and compared to a continuous iron film of the same thickness.
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Quasi-1D TiS3 Nanoribbons: Mechanical Exfoliation and Thickness-Dependent Raman Spectroscopy.
Alexey Lipatov,Michael J. Loes,Haidong Lu,Jun Dai,Piotr Patoka,Nataliia S. Vorobeva,Dmitry S. Muratov,Dmitry S. Muratov,Georg Ulrich,Georg Ulrich,Bernd Kästner,Arne Hoehl,Gerhard Ulm,Xiao Cheng Zeng,Eckart Rühl,Alexei Gruverman,Peter A. Dowben,Alexander Sinitskii +17 more
TL;DR: The conclusions established in this study can be extended to a variety of transition metal trichalcogenide materials as well as other quasi-1D crystals, and the possibility of exfoliation of TiS3 into narrow crystals with smooth edges could be important for the future realization of miniature device channels with reduced edge scattering of charge carriers.
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Characterization of semiconductor materials using synchrotron radiation-based near-field infrared microscopy and nano-FTIR spectroscopy
Peter Hermann,Arne Hoehl,Georg Ulrich,Claudia Fleischmann,Antje Hermelink,Bernd Kästner,Piotr Patoka,Andrea Hornemann,Burkhard Beckhoff,Eckart Rühl,Gerhard Ulm +10 more
TL;DR: The application of scattering-type near-field optical microscopy to characterize various semiconducting materials using the electron storage ring Metrology Light Source (MLS) as a broadband synchrotron radiation source shows high sensitivity for spectroscopic material discrimination.