Publications

Journal Article (125)

1.
Journal Article
Gaida, J. H.; Lourenço-Martins, H.; Sivis, M.; Rittmann, T.; Feist, A.; García de Abajo, F. J.; Ropers, C.: Attosecond electron microscopy by free-electron homodyne detection. Nature Photonics (2024)
2.
Journal Article
Battistelli, R.; Metternich, D.; Schneider, M.; Kern, L.-M.; Litzius, K.; Fuchs, J.; Klose, C.; Gerlinger, K.; Bagschik, K.; Günther, C.M. et al.; Engel, D.; Ropers, C.; Eisebitt, S.; Pfau, B.; Büttner, F.; Zayko, S.: Coherent x-ray magnetic imaging with 5 nm resolution. Optica 11 (2), pp. 234 - 237 (2024)
3.
Journal Article
Yang, Y.; Henke, J.-W.; Raja, A.S.; Kappert, F. J.; Huang, G.; Arend, G.; Qiu, Z.; Feist, A.; Wang, R.N.; Tusnin, A. et al.; Tikan, A.; Ropers, C.; Kippenberg, T.J.: Free-electron interaction with nonlinear optical states in microresonators. Science 383 (6679), pp. 168 - 173 (2024)
4.
Journal Article
Gutberlet, T.; Chang, H.-T.; Zayko, S.; Sivis, M.; Ropers, C.: High-sensitivity extreme-ultraviolet transient absorption spectroscopy enabled by machine learning. Optics Express 31 (24), pp. 39757 - 39764 (2023)
5.
Journal Article
Gaida, J. H.; Lourenço-Martins, H.; Yalunin, S. V.; Feist, A.; Sivis, M.; Hohage, T.; García de Abajo, F. J.; Ropers, C.: Lorentz microscopy of optical fields. Nature Communications 14 (1), 6545 (2023)
6.
Journal Article
Haindl, R.; Feist, A.; Domröse, T.; Möller, M.; Gaida, J. H.; Yalunin, S. V.; Ropers, C.: Coulomb-correlated electron number states in a transmission electron microscope beam. Nature Physics 19, pp. 1410 - 1417 (2023)
7.
Journal Article
Domröse, T.; Danz, T.; Schaible, S. F.; Rossnagel, K.; Yalunin, S. V.; Ropers, C.: Light-induced hexatic state in a layered quantum material. Nature Materials 22, pp. 1345 - 1351 (2023)
8.
Journal Article
Huang, G.; Engelsen, N. J.; Kfir, O.; Ropers, C.; Kippenberg, T. J.: Electron-Photon quantum state heralding using photonic integrated circuits. PRX Quantum 4 (2), 020351 (2023)
9.
Journal Article
García De Abajo, F.J.; Ropers, C.: Spatiotemporal Electron Beam Focusing through Parallel Interactions with Shaped Optical Fields. Physical Review Letters 130 (24), 246901 (2023)
10.
Journal Article
Heinrich, T.; Chang, H.-T.; Zayko, S.; Rossnagel, K.; Sivis, M.; Ropers, C.: Electronic and structural fingerprints of charge density wave excitations in extreme ultraviolet transient absorption spectroscopy. Physical Review X 13, 021033 (2023)
11.
Journal Article
Oh, J.; Chang, H.-T.; Chen, C. T.; Aloni, S.; Schwartzberg, A.; Leone, S. R.: Carrier and Phonon Dynamics in Multilayer WSe2 Captured by Extreme Ultraviolet Transient Absorption Spectroscopy. The Journal of Physical Chemistry C 127 (10), pp. 5004 - 5012 (2023)
12.
Journal Article
Feist, A.: Ultrafast plasmonics shapes electron beams. Nature Materials 22 (3), pp. 280 - 281 (2023)
13.
Journal Article
Haindl, R.; Köster, K.; Gaida, J. H.; Franz, M.; Feist, A.; Ropers, C.: Femtosecond tunable-wavelength photoassisted cold field emission. Applied Physics B: Lasers and Optics 129 (3), 40 (2023)
14.
Journal Article
Traeger, G. A.; Teichmann, M. H.; Schröder, B.; Wenderoth, M.: Combining grating-coupled illumination and image recognition for stable and localized optical scanning tunneling microscopy. Review of Scientific Instruments 94 (2), 023702 (2023)
15.
Journal Article
Boeckmann, H.; Horstmann, J. G.; Razzaq, A. S.; Wippermann, S.; Ropers, C.: Mode-selective ballistic pathway to a metastable electronic phase. Structural Dynamics 9 (4), 045102 (2022)
16.
Journal Article
Feist, A.; Huang, G.; Arend, G.; Yang, Y.; Henke, J.-W.; Raja, A. S.; Kappert, F. J.; Wang, R. N.; Lourenço-Martins, H.; Qiu, Z. et al.; Liu, J.; Kfir, O.; Kippenberg, T. J.; Ropers, C.: Cavity-mediated electron-photon pairs. Science 377 (6607), pp. 777 - 780 (2022)
17.
Journal Article
Bach, N.; Feist, A.; Möller, M.; Ropers, C.; Schaefer, S.: Tailored nanophononic wavefield in a patterned bilayer system probed by ultrafast convergent beam electron diffraction. Structural Dynamics 9 (3), 034301 (2022)
18.
Journal Article
Möller, M.; Gaida, J. H.; Ropers, C.: Pinning and gyration dynamics of magnetic vortices revealed by correlative Lorentz and bright-field imaging. Physical Review Research 4 (1), 013027 (2022)
19.
Journal Article
Sidiropoulos, T. . .; Palo, N. D.; Rivas, D. .; Severino, S.; Reduzzi, M.; Nandy, B.; Bauerhenne, B.; Krylow, S.; Vasileiadis, T.; Danz, T. et al.; Elliott, P.; Sharma, S.; Dewhurst, K.; Ropers, C.; Joly, Y.; Garcia, M. .; Wolf, M.; Ernstorfer, R.; Biegert, J.: Probing the Energy Conversion Pathways between Light, Carriers, and Lattice in Real Time with Attosecond Core-Level Spectroscopy. Physical Review X 11 (4), 041060 (2021)
20.
Journal Article
Henke, J.-W.; Raja, A. S.; Feist, A.; Huang, G.; Arend, G.; Yang, Y.; Kappert, F. J.; Wang, R. N.; Möller, M.; Pan, J. et al.; Liu, J.; Kfir, O.; Ropers, C.; Kippenberg, T. J.: Integrated photonics enables continuous-beam electron phase modulation. Nature 600 (7890), pp. 653 - 658 (2021)
21.
Journal Article
Zayko, S.; Kfir, O.; Heigl, M.; Lohmann, M.; Sivis, M.; Albrecht, M.; Ropers, C.: Ultrafast high-harmonic nanoscopy of magnetization dynamics. Nature Communications 12, 6337 (2021)
22.
Journal Article
Yalunin, S. V.; Feist, A.; Ropers, C.: Tailored high-contrast attosecond electron pulses for coherent excitation and scattering. Physical Review Research 3 (3), L032036 (2021)
23.
Journal Article
Harvey, T. R.; da Silva, N. R.; Gaida, J. H.; Möller, M.; Feist, A.; Schäfer, S.; Ropers, C.: Ultrafast electron microscopy for probing magnetic dynamics. MRS Bulletin 46, pp. 711 - 719 (2021)
24.
Journal Article
Heinrich, T.; Taucer, M.; Kfir, O.; Corkum, P. B.; Staudte, A.; Ropers, C.; Sivis, M.: Chiral high-harmonic generation and spectroscopy on solid surfaces using polarization-tailored strong fields. Nature Communications 12, 3723 (2021)
25.
Journal Article
Storeck, G.; Rossnagek, K.; Ropers, C.: Ultrafast spot-profile LEED of a charge-density wave phase transition. Applied Physics Letters 118 (22), 221603 (2021)
26.
Journal Article
Kfir, O.; Di Giulio, V.; Garcia de Abajo, F. J.; Ropers, C.: Optical coherence transfer mediated by free electrons. Science Advances 7 (18), eabf6380 (2021)
27.
Journal Article
Di Giulio, V.; Kfir, O.; Ropers, C.; Garcia de Abajo, F. J.: Modulation of cathodoluminescence emission by interference with external light. ACS Nano 15 (4), pp. 7290 - 7304 (2021)
28.
Journal Article
Liebtrau, M.; Sivis, M.; Feist, A.; Lourenço-Martins, H.; Pazos-Pérez, N.; Alvarez-Puebla, R. A.; García de Abajo, F. J.; Polman, A.; Ropers, C.: Spontaneous and stimulated electron–photon interactions in nanoscale plasmonic near fields. Light: Science & Applications 10, 82 (2021)
29.
Journal Article
Danz, T.; Domröse, T.; Ropers, C.: Ultrafast nanoimaging of the order parameter in a structural phase transition. Science 371 (6527), pp. 371 - 374 (2021)
30.
Journal Article
Büttner, F.; Pfau, B.; Böttcher, M.; Schneider, M.; Mercurio, G.; Günther, C.M.; Hessing, P.; Klose, C.; Wittmann, A.; Gerlinger, K. et al.; Kern, L.-M.; Strüber, C.; von Korff Schmising, C.; Fuchs, J.; Engel, D.; Churikova, A.; Huang, S.; Suzuki, D.; Lemesh, I.; Huang, M.; Caretta, L.; Weder, D.; Gaida, J.H.; Möller, M.; Harvey, T.R.; Zayko, S.; Bagschik, K.; Carley, R.; Mercadier, L.; Schlappa, J.; Yaroslavtsev, A.; Le Guyarder, L.; Gerasimova, N.; Scherz, A.; Deiter, C.; Gort, R.; Hickin, D.; Zhu, J.; Turcato, M.; Lomidze, D.; Erdinger, F.; Castoldi, A.; Maffessanti, S.; Porro, M.; Samartsev, A.; Sinova, J.; Ropers, C.; Mentink, J.H.; Dupé, B.; Beach, G.S.D.; Eisebitt, S.: Observation of fluctuation-mediated picosecond nucleation of a topological phase. Nature Materials 20 (1), pp. 30 - 37 (2021)
31.
Journal Article
Wang, K.; Dahan, R.; Nehemia, S.; Reinhardt, O.; Tsesses, S.; Kaminer, I.; Kfir, O.; Lourenço-Martins, H.; Feist, A.; Ropers, C. et al.; Kippenberg, T. J.: Toward quantum optics with free electrons. Optics and Photonics News 31 (12), p. 35 (2020)
32.
Journal Article
Feist, A.; Yalunin, S.V.; Schäfer, S.; Ropers, C.: High-purity free-electron momentum states prepared by three-dimensional optical phase modulation. Physical Review Research 2 (4), 043227 (2020)
33.
Journal Article
Horstmann, J. G.; Böckmann, H.; Wit, B.; Kurtz, F.; Storeck, G.; Ropers, C.: Coherent control of a surface structural phase transition. Nature 583 (7815), pp. 232 - 236 (2020)
34.
Journal Article
Kfir, O.; Lourenço-Martins, H.; Storeck, G.; Sivis, M.; Harvey, T.R.; Kippenberg, T. J.; Feist, A.; Ropers, C.: Controlling free electrons with optical whispering-gallery modes. Nature 582 (7810), pp. 46 - 49 (2020)
35.
Journal Article
Dombi, P.; Pápa, Z.; Vogelsang, J.; Yalunin, S. V.; Sivis, M.; Herink, G.; Schäfer, S.; Groß, P.; Ropers, C.; Lienau, C.: Strong-field nano-optics. Reviews of Modern Physics 92 (2), 025003 (2020)
36.
Journal Article
Schröder, B.; Bunjes, O.; Wimmer, L.; Kaiser, K.; Traeger, G.A.; Kotzott, T.; Ropers, C.; Wenderoth, M.: Controlling photocurrent channels in scanning tunneling microscopy. New Journal of Physics 22 (3), 033047 (2020)
37.
Journal Article
Bordo, E.; Kfir, O.; Zayko, S.; Neufeld, O.; Fleischer, A.; Ropers, C.; Cohen, O.: Interlocked attosecond pulse trains in slightly bi-elliptical high harmonic generation. Journal of Physics: Photonics 2 (3), 034005 (2020)
38.
Journal Article
Harvey, T.R.; Henke, J.-W.; Kfir, O.; Lourenço-Martins, H.; Feist, A.; García De Abajo, F.J.; Ropers, C.: Probing Chirality with Inelastic Electron-Light Scattering. Nano Letters 20 (6), pp. 4377 - 4383 (2020)
39.
Journal Article
Konečná, A.; Di Giulio, V.; Mkhitaryan, V.; Ropers, C.; García De Abajo, F.J.: Nanoscale Nonlinear Spectroscopy with Electron Beams. ACS Photonics 7 (5), pp. 1290 - 1296 (2020)
40.
Journal Article
Kurtz, F.; Ropers, C.; Herink, G.: Resonant excitation and all-optical switching of femtosecond soliton molecules. Nature Photonics 14 (1), pp. 9 - 13 (2020)
41.
Journal Article
Möller, M.; Gaida, J.H.; Schäfer, S.; Ropers, C.: Few-nm tracking of current-driven magnetic vortex orbits using ultrafast Lorentz microscopy. Communications Physics 3 (1), 36 (2020)
42.
Journal Article
Shi, C.; Ropers, C.; Hohage, T.: Density matrix reconstructions in ultrafast transmission electron microscopy: Uniqueness, stability, and convergence rates. Inverse Problems 36 (2), 025005 (2020)
43.
Journal Article
Storeck, G.; Horstmann, J.G.; Diekmann, T.; Vogelgesang, S.; Von Witte, G.; Yalunin, S.V.; Rossnagel, K.; Ropers, C.: Structural dynamics of incommensurate charge-density waves tracked by ultrafast low-energy electron diffraction. Structural Dynamics 7 (3), 034304 (2020)
44.
Journal Article
Wit, B.; Bunjes, O.; Wenderoth, M.; Ropers, C.: Structure and Nonequilibrium Heat-Transfer of a Physisorbed Molecular Layer on Graphene. Advanced Materials Interfaces 7 (13), 2000473 (2020)
45.
Journal Article
Zayko, S.; Kfir, O.; Bordo, E.; Fleischer, A.; Cohen, O.; Ropers, C.: A dynamical symmetry triad in high-harmonic generation revealed by attosecond recollision control. New Journal of Physics 22 (5), 053017 (2020)
46.
Journal Article
Bach, N.; Domröse, T.; Feist, A.; Rittmann, T.; Strauch, S.; Ropers, C.; Schäfer, S.: Coulomb interactions in high-coherence femtosecond electron pulses from tip emitters. Structural Dynamics 6 (1), 014301 (2019)
47.
Journal Article
Buchsteiner, P.; Sohn, F.; Horstmann, J.G.; Voigt, J.; Ciomaga Hatnean, M.; Balakrishnan, G.; Ropers, C.; Blöchl, P.E.; Wenderoth, M.: Surface resonance of the (2×1) reconstructed lanthanum hexaboride (001)-cleavage plane: A combined STM and DFT study. Physical Review B 100 (20), 205407 (2019)
48.
Journal Article
Ropers, C.: Holograms from electrons scattered by light. Nature 571 (7765), pp. 331 - 332 (2019)
49.
Journal Article
Von Witte, G.; Kißlinger, T.; Horstmann, J.G.; Rossnagel, K.; Schneider, M.A.; Ropers, C.; Hammer, L.: Surface structure and stacking of the commensurate (√13×√13)R13.9 charge density wave phase of 1T−TaS2(0001). Physical Review B 100 (15), 155407 (2019)
50.
Journal Article
Feist, A.; Rubiano Da Silva, N.; Liang, W.; Ropers, C.; Schäfer, S.: Nanoscale diffractive probing of strain dynamics in ultrafast transmission electron microscopy. Structural Dynamics 5 (1), 014302 (2018)
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