• Elektronenoptik und Elektronenholographie elektrischer Potentiale
• Methoden- und Instrumentenentwicklung in TEM
• Zeitaufgelöste Elektronenholographie im Nanosekundenbereich
• Electrical Biasing Expreimente an Halbleiternanostrukturen

Tolga Wagner, Tore Niermann, Felix Urban and Michael Lehmann. “Nanosecond electron holography by interference gating.” Ultramicroscopy 206 (2019): 112824.
DOI: 10.1016/j.ultramic.2019.112824

Tore Niermann, Michael Lehmann and Tolga Wagner. “Gated interference for time-resolved electron holography.” Ultramicroscopy 182 (2017): 54-61.
DOI: 10.1016/j.ultramic.2017.06.017

Thomas W. H. Oates, Timur Shaykhutdinov, Tolga Wagner, Andreas Furchner and Karsten Hinrichs. “Gyrotropy in achiral materials: the coupled oscillator model.” Advanced materials 26 42 (2014): 7197-201.
DOI: 10.1002/adma.201402012

Thomas W. H. Oates, Timur Shaykhutdinov, Tolga Wagner, Andreas Furchner and Karsten Hinrichs. “Mid-infrared gyrotropy in split-ring resonators measured by Mueller matrix ellipsometry.” Optical Materials Express 4 (2014): 2646-2655.
DOI: 10.1364/OME.4.002646

4th DGE Young Scientist Symposium, May 19th 2022, "Interference Gating - A New Way for Time-Resolved TEM".

4th Sino-German Symposium on Aberration-Corrected and In Situ Electron Microscopy and Spectroscopy in the Age of Big Data, Beijing University of Technology, Beijing, China 8-12 October 2019, "Time-Resolve Electron Holography - Basics and Applications".

Microscopy Conference 2019 (MC 2019), Berlin, Germany, 1-5 Sep 2019, "Applications of Nanosecond Electron Holography by Interference Gating".

Microscopy Conference 2019 (MC 2019), Berlin, Germany, 1-5 Sep 2019, "Development of a Multi Layered Electric Phase Shifter for Electron Holography".

Microscopy Conference 2019 (MC 2019), Berlin, Germany, 1-5 Sep 2019, "Reducing the Influence of Electric Stray Fields on the Reference Wave in Biasing Electron Holography".

Microscopy Conference 2019 (MC 2019), Berlin, Germany, 1-5 Sep 2019, "Towards Tomographic Reconstruction of 3D Electrostatic Potential Distribution Measured by Electron Holography".

Microscopy Conference 2019 (MC 2019), Berlin, Germany, 1-5 Sep 2019, "A GHz Phase Shifter for Time-Resolved Electron Holography by Interference Gating".

19th International Microscopy Congress (IMC19), Sydney, Australia, 9-14 Sep 2018, “Towards high-frequency electrical specimen stimulation for time-resolved electron microscopy”.

19th International Microscopy Congress (IMC19), Sydney, Australia, 9-14 Sep 2018, “Electron holographic measurement of the threedimensional
electrostatic potential distribution of a flat capacitor”.

19th International Microscopy Congress (IMC19), Sydney, Australia, 9-14 Sep 2018, "Time-Resolved Electron Holography by Interference Gating".

Microscopy Conference 2017 (MC 2017), Lausanne, Switzerland, 21-25 Aug 2017, "Time-Resolved Electron Holography by Interference Gating".

16th European Microscopy Congress (EMC16), Lyon, France, 28 Aug - 2 Sep 2016, "Concepts for an electrostatic phase shifting device".

16th European Microscopy Congress (EMC16), Lyon, France, 28 Aug - 2 Sep 2016, "Sample preparation for in‐situ biasing TEM experiments".

Michael Lehmann, Tore Niermann and Tolga Wagner. “METHOD AND APPARATUS FOR CARRYING OUT A TIME-RESOLVED INTERFEROMETRIC MEASUREMENT.”, Publication number: EP3376522A1; TW201833521A; US2020103213A1; WO2018166786A1 (2018).
https://patentimages.storage.googleapis.com/3f/99/6a/e600762da71959/US20200103213A1.pdf

T .Wagner, M. Lehmann and T. Niermann. “ARRANGEMENT AND METHOD FOR DETECTING MEASURED VALUE ON BASIS OF ELECTRON HOLOGRAPHY.”, Publication number: CN112534358A; EP3611574A1; EP3837587A1; WO2020035205A1 (2020).
https://worldwide.espacenet.com/publicationDetails/originalDocument?flavour=trueFull&locale=en_EP&FT=D&CC=EP&NR=3611574A1

Doctoral Thesis, Institute of Optics and Atomic Physics , Technische Universität Berlin, Prof. Dr. Michael Lehmann, “Interference Gating – A Novel Method for Time-Resolved Off-axis Electron Holography”.
DOI: 10.14279/depositonce-15226

Master Thesis, Leibniz-Institut für Analytische Wissenschaften (ISAS) Berlin, Germany, Prof. Dr. Norbert Esser, „ Messung der rotationsabhängigen optischen Eigenschaften von Split-Ring-Resonator-Proben mittels generalisierter IR-Ellipsometrie“.

Bachelor Thesis, Leibniz-Institut für Analytische Wissenschaften (ISAS) Berlin, Germany, Prof. Dr. Norbert Esser, „ Spektroskopische In-situ-Infrarotellipsometrie: Abhängigkeit der Proteinadsorption von der Hydrophilizität einer Oberfläche“.