Maik Kahnt

Search results

• 2022

  The nanoscale distribution of copper and its influence on charge collection in CdTe solar cells

  Walker, T., Stuckelberger, M. E., Nietzold, T., Mohan-Kumar, N., Ossig, C., Kahnt, M., Wittwer, F., Lai, B., Salomon, D., Colegrove, E. & Bertoni, M. I., 2022 Jan, In: Nano Energy. 91, 106595.

  Research output: Contribution to journal › Article › peer-review

  • Solar cells 100%
  • Solar Cell 81%
  • Charge transfer 80%
  • Copper 76%
  • X-Ray Microscopy 66%

• X-ray in-line holography and holotomography at the NanoMAX beamline

  Kalbfleisch, S., Zhang, Y., Kahnt, M., Buakor, K., Langer, M., Dreier, T., Dierks, H., Stjärneblad, P., Larsson, E., Gordeyeva, K., Chayanun, L., Söderberg, D., Wallentin, J., Bech, M. & Villanueva-Perez, P., 2022 Jan 1, In: Journal of Synchrotron Radiation. 29, Pt 1, p. 224-229 6 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Holography 100%
  • holography 69%
  • X rays 64%
  • Diffraction 57%
  • Imaging techniques 54%
• 2021

  Contrast - a lightweight Python framework for beamline orchestration and data acquisition

  Björling, A., Weninger, C., Kahnt, M., Kalbfleisch, S., Johansson, U., Sala, S., Lenrick, F. & Thånell, K., 2021 Jul 1, In: Journal of Synchrotron Radiation. 28, 4, p. 1253-1260 8 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • data acquisition 100%
  • Data acquisition 88%
  • Synchrotrons 68%
  • flexibility 47%
  • synchrotrons 44%

• Measurement of the coherent beam properties at the CoSAXS beamline

  Kahnt, M., Klementiev, K., Haghighat, V., Weninger, C., Plivelic, T. S., Terry, A. E. & Björling, A., 2021 Nov 1, In: Journal of Synchrotron Radiation. 28, p. 1948-1953 6 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • X ray scattering 100%
  • scattering 32%
  • x rays 28%
  • Fluxes 20%
  • Imaging techniques 19%

• Multi-slice ptychography enables high-resolution measurements in extended chemical reactors

  Kahnt, M., Grote, L., Brückner, D., Seyrich, M., Wittwer, F., Koziej, D. & Schroer, C. G., 2021, In: Scientific Reports. 11, 1, 1500.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • cuprous oxide 100%
  • Chemical Phenomena 68%
  • Microscopy 20%
  • X-Rays 18%

• NanoMAX: The hard X-ray nanoprobe beamline at the MAX IV Laboratory

  Johansson, U., Carbone, D., Kalbfleisch, S., Björling, A., Kahnt, M., Sala, S., Stankevic, T., Liebi, M., Fernandez, A. R., Bring, B., Paterson, D., Thanell, K., Bell, P., Erb, D., Weninger, C., Matej, Z., Roslund, L., Ahnberg, K., Jensen, B. N., Tarawneh, H. & 2 others, Mikkelsen, A. & Vogt, U., 2021 Nov 1, In: Journal of Synchrotron Radiation. 28, p. 1935-1947 13 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Nanoprobes 100%
  • Storage rings 82%
  • Diffraction 59%
  • Optics 57%
  • X rays 50%

• Planar refractive lenses made of SiC for high intensity nanofocusing

  Lyubomirskiy, M., Schurink, B., Makhotkin, I. A., Brueckner, D., Wittwer, F., Kahnt, M., Seyrich, M., Seiboth, F., Bijkerk, F. & Schroer, C. G., 2021 Apr 26, In: Optics Express. 29, 9, p. 14025-14032 8 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • lenses 100%
  • radiation sources 47%
  • silicon carbides 43%
  • synchrotron radiation 40%
  • lithography 37%

• Upscaling of multi-beam x-ray ptychography for efficient x-ray microscopy with high resolution and large field of view

  Wittwer, F., Lyubomirskiy, M., Koch, F., Kahnt, M., Seyrich, M., Garrevoet, J., David, C. & Schroer, C. G., 2021, In: Applied Physics Letters. 118, 17, 6 p., 171102.

  Research output: Contribution to journal › Article › peer-review

  • field of view 100%
  • microscopy 75%
  • high resolution 65%
  • x rays 48%
  • spatial resolution 42%
• 2020

  A direct solver for the phase retrieval problem in ptychographic imaging

  Sissouno, N., Boßmann, F., Filbir, F., Iwen, M., Kahnt, M., Saab, R., Schroer, C. & zu Castell, W., 2020 Oct, In: Mathematics and Computers in Simulation. 176, p. 292-300 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Phase Retrieval 100%
  • Imaging 74%
  • Imaging techniques 51%
  • Diffraction 37%
  • Windowed Fourier Transform 28%
  3 Citations (SciVal)

• First ptychographic X-ray computed tomography experiment on the NanoMAX beamline

  Kahnt, M., Sala, S., Johansson, U., Bjorling, A., Jiang, Z., Kalbfleisch, S., Lenrick, F., Pikul, J. H. & Thanell, K., 2020, In: Journal of Applied Crystallography. 53, p. 1444-1451 8 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Synchrotrons 100%
  • X Ray Computed Tomography 84%
  • X-Ray 43%
  • Three-Dimensional Imaging 42%
  • X-Rays 27%
  1 Citation (SciVal)

• Hard X-ray wavefront correction via refractive phase plates made by additive and subtractive fabrication techniques

  Seiboth, F., Brückner, D., Kahnt, M., Lyubomirskiy, M., Wittwer, F., Dzhigaev, D., Ullsperger, T., Nolte, S., Koch, F., David, C., Garrevoet, J., Falkenberg, G. & Schroer, C. G., 2020 Sep 1, In: Journal of Synchrotron Radiation. 27, p. 1121-1130 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • X ray optics 100%
  • Wavefronts 98%
  • Lenses 76%
  • X rays 68%
  • Fabrication 55%
  3 Citations (SciVal)

• Ptychographic characterization of a coherent nanofocused X-ray beam

  Björling, A., Kalbfleisch, S., Kahnt, M., Sala, S., Parfeniukas, K., Vogt, U., Carbone, G. & Johansson, U., 2020 Feb 17, In: Optics Express. 28, 4, p. 5069-5076 8 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • characterization 100%
  • diffraction 96%
  • x rays 80%
  • synchrotrons 77%
  • decomposition 68%
  12 Citations (SciVal)

• PtyNAMi: Ptychographic nano-analytical microscope

  Schropp, A., Dohrmann, R., Botta, S., Bruckner, D., Kahnt, M., Lyubomirskiy, M., Ossig, C., Scholz, M., Seyrich, M., Stuckelberger, M. E., Wiljes, P., Wittwer, F., Garrevoet, J., Falkenberg, G., Fam, Y., Sheppard, T. L., Grunwaldtd, J. D. & Schroer, C. G., 2020 Aug 1, In: Journal of Applied Crystallography. 53, p. 957-971 15 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Optical Devices 100%
  • Environment 84%
  • X-Rays 57%
  • Temperature 53%
  • X-Ray 45%
  6 Citations (SciVal)

• Tomographic reconstruction with a generative adversarial network

  Yang, X., Kahnt, M., Bruckner, D., Schropp, A., Fam, Y., Becher, J., Grunwaldt, J. D., Sheppard, T. L. & Schroer, C. G., 2020 Mar 1, In: Journal of Synchrotron Radiation. 27, p. 486-493 8 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Tomography 100%
  • education 76%
  • Radon 66%
  • Pore structure 64%
  • Zeolites 62%
  5 Citations (SciVal)
• 2019

  3D nano-tomography using coherent X-rays

  Kahnt, M., 2019, Hamburg: Staats- und Universitätsbibliothek Hamburg . 126 p.

  Research output: Thesis › Doctoral Thesis (monograph)

  Open Access

  • tomography 100%
  • x rays 56%
  • projection 16%
  • approximation 11%
  • radiation sources 10%

• A versatile nanoreactor for complementary in situ X-ray and electron microscopy studies in catalysis and materials science

  Fam, Y., Sheppard, T. L., Becher, J., Scherhaufer, D., Lambach, H., Kulkarni, S., Keller, T. F., Wittstock, A., Wittwer, F., Seyrich, M., Brueckner, D., Kahnt, M., Yang, X., Schropp, A., Stierle, A., Schroer, C. G. & Grunwaldt, J. D., 2019 Sep 1, In: Journal of Synchrotron Radiation. 26, p. 1769-1781 13 p.

  Research output: Contribution to journal › Article › peer-review

  • Nanoreactors 100%
  • Catalysis 62%
  • Electron microscopy 60%
  • Materials science 57%
  • catalysis 54%
  8 Citations (SciVal)

• Coupled ptychography and tomography algorithm improves reconstruction of experimental data

  Kahnt, M., Becher, J., Brückner, D., Fam, Y., Sheppard, T., Weissenberger, T., Wittwer, F., Grunwaldt, J. D., Schwieger, W. & Schroer, C. G., 2019 Jan 1, In: Optica. 6, 10, p. 1282-1289 8 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Tomography 100%
  • Sampling 86%
  • tomography 82%
  • Volume 59%
  • projection 49%
  12 Citations (SciVal)

• Mapping the Pore Architecture of Structured Catalyst Monoliths from Nanometer to Centimeter Scale with Electron and X-ray Tomographies

  Becher, J., Sheppard, T. L., Fam, Y., Baier, S., Wang, W., Wang, D., Kulkarni, S., Keller, T. F., Lyubomirskiy, M., Brueckner, D., Kahnt, M., Schropp, A., Schroer, C. G. & Grunwaldt, J. D., 2019, In: Journal of Physical Chemistry C. 123, 41, p. 25197-25208 12 p.

  Research output: Contribution to journal › Article › peer-review

  • Electrons 100%
  • Tomography 95%
  • catalysts 92%
  • X rays 90%
  • Catalysts 84%
  9 Citations (SciVal)

• Ptychographic characterization of polymer compound refractive lenses manufactured by additive technology

  Lyubomirskiy, M., Koch, F., Abrashitova, K. A., Bessonov, V. O., Kokareva, N., Petrov, A., Seiboth, F., Wittwer, F., Kahnt, M., Seyrich, M., Fedyanin, A. A., David, C. & Schroer, C. G., 2019 Mar 18, In: Optics Express. 27, 6, p. 8639-8650 12 p.

  Research output: Contribution to journal › Article › peer-review

  • polymerization 100%
  • lithography 88%
  • lenses 77%
  • nanofabrication 63%
  • polymers 61%
  7 Citations (SciVal)

• Ptychographic Nano-Analytical Microscope (PtyNAMi) at PETRA III: Signal-to-background optimization for imaging with high sensitivity

  Schroer, C. G., Seyrich, M., Schropp, A., Döhrmann, R., Botta, S., Wiljes, P., Brückner, D., Kahnt, M., Wittwer, F., Grote, L., Koziej, D., Garrevoet, J. & Falkenberg, G., 2019 Jan 1, X-Ray Nanoimaging: Instruments and Methods IV. Lai, B. & Somogyi, A. (eds.). SPIE, 111120D. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 11112).

  Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › Research › peer-review

  • Microscopes 100%
  • Detectors 81%
  • Imaging techniques 79%
  • Incoherent scattering 51%
  • Scattering 24%
  6 Citations (SciVal)

• Refractive hard x-ray vortex phase plates

  Seiboth, F., Kahnt, M., Lyubomirskiy, M., Seyrich, M., Wittwer, F., Ullsperger, T., Nolte, S., Batey, D., Rau, C. & Schroer, C. G., 2019 Sep 15, In: Optics Letters. 44, 18, p. 4622-4625 4 p.

  Research output: Contribution to journal › Article › peer-review

  • vortices 100%
  • silicon dioxide 69%
  • ultrashort pulsed lasers 66%
  • x rays 61%
  • x ray lasers 57%
  8 Citations (SciVal)

• Synthesis and Characterisation of Hierarchically Structured Titanium Silicalite-1 Zeolites with Large Intracrystalline Macropores

  Weissenberger, T., Leonhardt, R., Zubiri, B. A., Pitínová-Štekrová, M., Sheppard, T. L., Reiprich, B., Bauer, J., Dotzel, R., Kahnt, M., Schropp, A., Schroer, C. G., Grunwaldt, J. D., Casci, J. L., Čejka, J., Spiecker, E. & Schwieger, W., 2019 Jan 1, In: Chemistry - A European Journal.

  Research output: Contribution to journal › Article › peer-review

  • Zeolites 100%
  • Titanium 80%
  • Zeolite 63%
  • Silica 28%
  • Tomography 26%
  18 Citations (SciVal)
• 2018

  Nanofocusing with aberration-corrected rotationally parabolic refractive X-ray lenses

  Seiboth, F., Wittwer, F., Scholz, M., Kahnt, M., Seyrich, M., Schropp, A., Wagner, U., Rau, C., Garrevoet, J., Falkenberg, G. & Schroer, C. G., 2018 Jan 1, In: Journal of Synchrotron Radiation. 25, 1, p. 108-115 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Aberrations 100%
  • Lenses 77%
  • X rays 68%
  • aberration 67%
  • lenses 55%
  6 Citations (SciVal)
• 2017

  PtyNAMi: Ptychographic nano-analytical microscope at PETRA III - Interferometrically tracking positions for 3D x-ray scanning microscopy using a ball-lens retroreflector

  Schroer, C. G., Seyrich, M., Kahnt, M., Botta, S., Döhrmann, R., Falkenberg, G., Garrevoet, J., Lyubomirskiy, M., Scholz, M., Schropp, A. & Wittwer, F., 2017 Jan 1, X-Ray Nanoimaging: Instruments and Methods III. Somogyi, A. & Lai, B. (eds.). SPIE, Vol. 10389. 103890E

  Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › Research › peer-review

  • retroreflectors 100%
  • balls 63%
  • microscopes 54%
  • lenses 51%
  • microscopy 49%
  12 Citations (SciVal)

• Structure and Composition of Isolated Core-Shell (In,Ga) N/GaN Rods Based on Nanofocus X-Ray Diffraction and Scanning Transmission Electron Microscopy

  Krause, T., Hanke, M., Nicolai, L., Cheng, Z., Niehle, M., Trampert, A., Kahnt, M., Falkenberg, G., Schroer, C. G., Hartmann, J., Zhou, H., Wehmann, H. H. & Waag, A., 2017 Feb 28, In: Physical Review Applied. 7, 2, 024033.

  Research output: Contribution to journal › Article › peer-review

  • rods 100%
  • transmission electron microscopy 80%
  • scanning electron microscopy 79%
  • diffraction 65%
  • plastics 57%
  9 Citations (SciVal)
• 2016

  Hard x-ray nanoprobe of beamline P06 at PETRA III

  Schroer, C. G., Baumbach, C., Döhrmann, R., Klare, S., Hoppe, R., Kahnt, M., Patommel, J., Reinhardt, J., Ritter, S., Samberg, D., Scholz, M., Schropp, A., Seiboth, F., Seyrich, M., Wittwer, F. & Falkenberg, G., 2016 Jul 27, Proceedings of the 12th International Conference on Synchrotron Radiation Instrumentation, SRI 2015. Chubar, O., Jarrige, I., Kaznatcheev, K., Miller, L., Stavitski, E., Tanabe, T., Shaftan, T., Shen, Q., Pindak, R., Nelson, C., Kalbfleisch, S., Thieme, J., Williams, G., Fuchs, M., Rumaiz, A., Wang, J., Evans-Lutterodt, K., Lee, W-K., McSweeney, S. & Vescovo, E. (eds.). American Institute of Physics (AIP), Vol. 1741. 030007

  Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › Research › peer-review

  • x rays 100%
  • nanotechnology 83%
  • chemistry 63%
  • microscopes 57%
  • lenses 54%
  12 Citations (SciVal)

• Quantitative characterization of aberrations in x-ray optics

  Seiboth, F., Kahnt, M., Scholz, M., Seyrich, M., Wittwer, F., Garrevoet, J., Falkenberg, G., Schropp, A. & Schroer, C. G., 2016 Jan 1, Advances in X-Ray/EUV Optics and Components XI. Morawe, C., Khounsary, A. M. & Goto, S. (eds.). SPIE, Vol. 9963. 99630P

  Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › Research › peer-review

  • x ray optics 100%
  • aberration 61%
  • geometrical optics 57%
  • characterization 38%
  • optics 37%
  9 Citations (SciVal)