D. Ehberger, C. Kealhofer, P. Baum, “Electron energy analysis by phase-space shaping with terahertz field cycles,” Structural Dynamics 5, 044303 (2018)

C. Kealhofer, W. Schneider, D. Ehberger, A. Ryabov, F. Krausz, P. Baum, “All-optical control and metrology of electron pulses,” Science 352, 429-433 (2016); Perspective by C. Ropers.

C. Kealhofer, S. Lahme, T. Urban, P. Baum “Signal-to-noise in femtosecond electron diffraction,” Ultramicroscopy 159, 19-25 (2015)

T. Juffmann, B. B. Klopfer, G. E. Skulason, C. Kealhofer, F. Xiao, S. M. Foreman, M. A. Kasevich “Ultrafast time-resolved photoelectric emission,” Phys. Rev. Lett. 115, 264803 (2015) (arXiv)

C. Kealhofer, B. B. Klopfer, G. E. Skulason, T. Juffmann, S. M. Foreman, M. A. Kasevich, “Ultrafast oscilloscope based on laser-triggered field emitters,” Optics Letters 40, 260-263 (2015)

S. Lahme, C. Kealhofer, F. Krausz, and P. Baum, “Femtosecond single-electron diffraction,” Structural Dynamics 1, 034303 (2014)

S. M. Foreman, C. Kealhofer, G. E. Skulason, B. B. Klopfer, M. A. Kasevich, “Ultrafast microfocus x-ray source based on a femtosecond laser-triggered tip,” Annalen der Physik 525, L19-L22 (2013)

C. Kealhofer, S. M. Foreman, S. Gerlich, M. A. Kasevich, “Ultrafast laser-triggered emission from hafnium carbide tips,” Phys. Rev. B 86 035405 (2012) (arXiv)

P. Hommelhoff, C. Kealhofer, A. Aghajani-Talesh, Y. Sortais, S. M. Foreman, M. A. Kasevich, “Extreme localization of electrons in space and time,” Ultramicroscopy 109 423-429 (2009)

P. Hommelhoff, C. Kealhofer, M. A. Kasevich, “Ultrafast electron pulses from a tungsten tip triggered by low-power femtosecond laser pulses,” Phys. Rev. Lett. 97 247402 (2006) (arXiv)


C. Kealhofer, “How to light up the electron microscope,” Nature Physics (News and Views), 19 773 (2023)

C. Kealhofer, “Viewpoint: An ultrafast switch for electron emission,” Physics 9, 132 (2016)