Publications (11)
Laser-Driven Structure-Based Accelerators
R. J. England, D. Filippetto, G. Torrisi +17
Particle acceleration in microstructures driven by ultrafast solid state lasers is a rapidly evolving area of advanced accelerator research, leading to a variety of concepts based…
Dielectric Laser Acceleration
N. Schonenberger, P. Hommelhoff
Dielectric laser accelerators (DLAs) use the nearfields created when a laser pulse impinges on a dielectric structure to accelerate charged particles. We provide an overview of the…
Atom Chip for Transporting and Merging Magnetically Trapped Atom Clouds
W. Hänsel, J. Reichel, P. Hommelhoff +1
We demonstrate an integrated magnetic ``atom chip'' which transports cold trapped atoms near a surface with very high positioning accuracy. Time-dependent currents in a lithographi…
Attosecond physics at the nanoscale
M. F. Ciappina, J. A. Pérez-Hernández, A. S. Landsman +22
Recently two emerging areas of research, attosecond and nanoscale physics, have started to come together. Attosecond physics deals with phenomena occurring when ultrashort laser pu…
Applications of Integrated Magnetic Microtraps
J. Reichel, W. Hänsel, P. Hommelhoff +1
Lithographically fabricated circuit patterns can provide magnetic guides and microtraps for cold neutral atoms. By combining several such structures on the same ceramic substrate,…
Onset of space-charge effects in strong-field photocurrents from nanometric needle tips
J. Schötz, L. Seiffert, A. Maliakkal +8
Strong-field photoemission from nanostructures and the associated temporally modulated currents play a key role in the development of ultrafast vacuum optoelectronics. Optical ligh…
Quantum tomography of free electrons
Y. Fang, J. Kuttruff, Z. Zhao +3
Determining the quantum state of a given quantum-mechanical system is a fundamental task in physics. Quantum-state tomography has been pivotal for establishing quantum optics [1-4]…
High-order harmonic generation driven by metal nanotip photoemission: theory and simulations
M. F. Ciappina, J. A. Pérez-Hernández, M. Lewenstein +2
We present theoretical predictions of high-order harmonic generation (HHG) resulting from the interaction of short femtosecond laser pulses with metal nanotips. It has been demonst…
Transporting, splitting and merging of atomic ensembles in a chip trap
P. Hommelhoff, W. Hänsel, T. Steinmetz +2
We present a toolbox for cold atom manipulation with time-dependent magnetic fields generated by an atom chip. Wire layouts, detailed experimental procedures and results are presen…
Ultrafast scanning electron microscope applied for studying the interaction between free electrons and optical near-fields of periodic nanostructures
M. Kozák, J. McNeur, N. Schönenberger +6
In this paper we describe an ultrafast scanning electron microscope setup developed for the research of inelastic scattering of electrons at optical near-fields of periodic dielect…
Trapped-Atom-Interferometer in a Magnetic Microtrap
W. Hänsel, J. Reichel, P. Hommelhoff +1
We propose a configuration of a magnetic microtrap which can be used as an interferometer for three-dimensionally trapped atoms. The interferometer is realized via a dynamic splitt…