"Polarization contrast of nanoscale waveguides in high harmonic imaging"  openaccess
S. Zayko, M. Sivis, S. Schaefer, C. Ropers
Optica 3, 239-242 (2016)

"Theory of electron energy loss near plasmonic wires, nanorods, and cones"
S. V. Yalunin, B. Schroeder, C. Ropers
Phys. Rev. B 93, 115408 (2016)

"Strong-field photoemission in nanotip near-fields: from quiver to sub-cycle electron dynamics"
K. E. Echternkamp, G. Herink, S. V. Yalunin, K. Rademann, S. Schaefer, C. Ropers
Appl. Phys. B 122, 1-10 (2016)

 "Resolving the build-up of femtosecond mode-locking with single-shot spectroscopy at 90 MHz frame rate"
G. Herink, B. Jalali, C. Ropers, D. R. Solli
Nat. Photonics 10, 321-326 (2016)

"Electrons catch a terahertz wave"
C. Ropers
Science 352, 410-411 (2016)

"Structural and magnetic characterization of large area, free-standing thin films of magnetic ion intercalated dichalcogenides Mn0.25TaS2 and Fe0.25TaS2"
Th. Danz, Q. Liu, X. D. Zhu, L. H. Wang, S. W. Cheong, I. Radu, C. Ropers, R. I. Tobey
J. Phys. Condens. Matter 28, 356002 (2016) [arXiv]

"Ramsey-type phase control of free-electron beams"
K. E. Echternkamp, A. Feist, S. Schaefer, C. Ropers
Nat. Phys. 12, 1000-1004 (2016)

"Dynamics and Structure of Monolayer Polymer Crystallites on Graphene"
M. Gulde, A. N. Rissanou, V. Harmandaris, M. Mueller, S. Schaefer, C. Ropers
Nano Lett. 16, 6994-7000 (2016)



"Ultrafast Nano-Focusing for Imaging and Spectroscopy with Electrons and Light"
C. Lienau, M. Raschke, and C. Ropers
Attosecond Nanophysics: From Basic Science to Applications, Wiley-VCH, , pp. 281-324 (2015)

"Toroidal grating astigmatism of high-harmonics characterized by EUV Hartmann sensor"  openaccess
T. Mey, S. Zayko, C. Ropers, B. Schaefer, K. Mann
Opt. Express 23, 15310-15315 (2015)

"Optical field emission from resonant gold nanorods driven by femtosecond mid-infrared pulses"  openaccess
F. Kusa, K. E. Echternkamp, G. Herink, C. Ropers, S. Ashihara
AIP Advances 5, 077138 (2015)

"Coherent diffractive imaging beyond the projection approximation: waveguiding at extreme ultraviolet wavelengths"  openaccess
S. Zayko, E. Moennich, M. Sivis, D.-D. Mai, T. Salditt, S. Schaefer, C. Ropers
Opt. Express 23, 19911-19921 (2015)

"Real-space imaging of nanotip plasmons using electron energy loss spectroscopy"
B. Schroeder, T. Weber, S. V. Yalunin, T. Kiel, C. Matyssek, M. Sivis, S. Schaefer, F. von Cube, S. Irsen, K. Busch, C. Ropers, S. Linden
Phys. Rev. B 92, 085411 (2015)

"An ultrafast electron microscope gun driven by two-photon photoemission from a nanotip cathode"
R. Bormann, S. Strauch, S. Schaefer, C. Ropers
J. Appl. Phys. 118, 173105 (2015)

"An ultrafast nanotip electron gun triggered by grating-coupled surface plasmons"
B. Schroeder, M. Sivis, R. Bormann, S. Schaefer, C. Ropers
Appl. Phys. Lett. 107, 231105 (2015)

 "Quantum coherent optical phase modulation in an ultrafast transmission electron microscope"
A. Feist, K. E. Echternkamp, J. Schauss, S. V. Yalunin, S. Schaefer, C. Ropers
Nature 521, 200-203 (2015)



"Terahertz control of nanotip photoemission"
L. Wimmer, G. Herink, D. R. Solli, S. V. Yalunin, K. E. Echternkamp, C. Ropers
Nat. Phys. 10, 432-436 (2014)

"Ultrafast low-energy electron diffraction in transmission resolves polymer/graphene superstructure dynamics"
M. Gulde, S. Schweda, G. Storeck, M. Maiti, H. K. Yu, A. M. Wodtke, S. Schaefer, C. Ropers
Science 345, 200-204 (2014)

"Chemical Vapor Deposition of Graphene on a ''Peeled-Off'' Epitaxial Cu(111) Foil: A Simple Approach to Improved Properties"
H. K. Yu, K. Balasubramanian, K. Kim, J.-L. Lee, M. Maiti, C. Ropers, J. Krieg, K. Kern, A. M. Wodtke
ACS Nano 8, 8636-8643 (2014)

"Field emission at terahertz frequencies: AC-tunneling and ultrafast carrier dynamics"
G. Herink, L. Wimmer, C. Ropers
New J. Phys. 16, 123005 (2014)



"Field localization and rescattering in tip-enhanced photoemission"
S. V. Yalunin, G. Herink, D. R. Solli, M. Krueger, P. Hommelhoff, M. Diehn, A. Munk, C. Ropers
Ann. Phys. 525, L12-L18 (2013)

"Measuring single-shot modulation instability and supercontinuum spectra at megahertz rates"
D. R. Solli, C. Ropers, B. Jalali
Nonlinearity 26, R85-R92 (2013)

"Rogue events and noise shaping in nonlinear silicon photonics"
P. T. S. DeVore, D. R. Solli, D. Borlaug, C. Ropers, B. Jalali
J. Opt. 15, 064001 (2013)

 "Extreme-ultraviolet light generation in plasmonic nanostructures"
M. Sivis, M. Duwe, B. Abel, C. Ropers
Nat. Phys. 9, 304-309 (2013)

"Generation and Bistability of a Waveguide Nanoplasma Observed by Enhanced Extreme-Ultraviolet Fluorescence"
M. Sivis, C. Ropers
Phys. Rev. Lett. 111, 085001 (2013)



"Stimulated supercontinuum generation extends broadening limits in silicon"
P. T. S. DeVore, D. R. Solli, C. Ropers, P. Koonath, B. Jalali
Appl. Phys. Lett. 100, 101111 (2012)

 "Field-driven photoemission from nanostructures quenches the quiver motion"
G. Herink, D. R. Solli, M. Gulde, C. Ropers
Nature 483, 190-193 (2012)

"Nanostructure-enhanced atomic line emission"
M. Sivis, M. Duwe, B. Abel, C. Ropers
Nature 485, E1-E2 (2012)

 "Fluctuations and correlations in modulation instability"
D. R. Solli, G. Herink, B. Jalali, C. Ropers
Nat. Photonics 6, 463-468 (2012)

"Coherent femtosecond low-energy single-electron pulses for time-resolved diffraction and imaging: A numerical study"
A. Paarmann, M. Gulde, M. Mueller, S. Schaefer, S. Schweda, M. Maiti, C. Xu, T. Hohage, F. Schenk, C. Ropers, R. Ernstorfer
J. Appl. Phys. 112, 113109 (2012)



"Ultrafast nonequilibrium carrier dynamics in a single graphene layer"
M. Breusing, S. Kuehn, T. Winzer, E. Malic, F. Milde, N. Severin, J. P. Rabe, C. Ropers, A. Knorr, T. Elsaesser
Phys. Rev. B 83, 153410 (2011) [PDF]

"Strong-field photoemission from surfaces: Theoretical approaches"
S. V. Yalunin, M. Gulde, C. Ropers
Phys. Rev. B 84, 195426 (2011) [PDF]

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