202 citations · 938 across the 22 of their papers we have counts for
22 papers
Exploiting ionization dynamics in the nitrogen vacancy center for rapid, high-contrast spin and charge state initialization
Daniel Wirtitsch, Georg Wachter, Sarah Reisenbauer +6
We propose and experimentally demonstrate a method to strongly increase the sensitivity of spin measurements on nitrogen-vacancy (NV) centers in diamond, which can be readily imple…
High finesse microcavities in the optical telecom O-band
Jan Fait, Stefan Putz, Georg Wachter +4
Optical microcavities allow to strongly confine light in small mode volumes and with long photon lifetimes. This confinement significantly enhances the interaction between light an…
Silicon microcavity arrays with open access and a finesse of half a million
G. Wachter, S. Kuhn, S. Minniberger +10
Optical resonators are increasingly important tools in science and technology. Their applications range from laser physics, atomic clocks, molecular spectroscopy, and single-photon…
Scalable spin-photon entanglement by time-to-polarization conversion
Rui Vasconcelos, Sarah Reisenbauer, Cameron Salter +5
Spin-photon interfaces are strong candidates for building blocks of future quantum networks and quantum computers. Several systems currently under examination present promising fea…
Nanoparticle detection in an open-access silicon microcavity
Stefan Kuhn, Georg Wachter, Franz-Ferdinand Wieser +6
We report on the detection of free nanoparticles in a micromachined, open-access Fabry-Pérot microcavity. With a mirror separation of m, a radius of curvature of mm,…
High Visibility in Two-Color Above-Threshold Photoemission from Tungsten Nanotips in a Coherent Control Scheme
Timo Paschen, Michael Förster, Michael Krüger +6
In this article we present coherent control of above-threshold photoemission from a tungsten nanotip achieving nearly perfect modulation. Depending on the pulse delay between funda…
Ab-initio multi-scale simulation of high-harmonic generation in solids
Isabella Floss, Christoph Lemell, Georg Wachter +5
High-harmonic generation by a highly non-linear interaction of infrared laser fields with matter allows for the generation of attosecond pulses in the XUV spectral regime. This pro…
Pulsed photoelectric coherent manipulation and detection of NV centre spins in diamond
Michal Gulka, Emilie Bourgeois, Jaroslav Hruby +8
Hybrid photoelectric detection of NV magnetic resonances (PDMR) is anticipated to lead to scalable quantum chip technology. To achieve this goal, it is crucial to prove that PDMR r…
Enhanced dual-beam excitation photoelectric detection of NV magnetic resonances in diamond
E. Bourgeois, E. Londero, K. Buczak +8
The core issue for the implementation of the diamond NV centre qubits technology is the sensitive readout of NV spin state. We have recently demonstrated the photoelectric detectio…
Two-color coherent control of femtosecond above-threshold photoemission from a tungsten nanotip
Michael Förster, Timo Paschen, Michael Krüger +6
We demonstrate coherent control of multiphoton and above-threshold photoemission from a single solid-state nanoemitter driven by a fundamental and a weak second harmonic laser puls…
Subnanotesla quantum-interference magnetometry with a single spin in diamond
A. Angerer, T. Nöbauer, G. Wachter +5
We demonstrate a magnetometry technique using nitrogen-vacancy centres in diamond which makes use of coherent two-photon transitions. We find that the sensitivity to magnetic field…
Observation of molecular dipole excitations by attosecond self-streaking
Georg Wachter, Stefan Nagele, Shunsuke A. Sato +6
We propose a protocol to probe the ultrafast evolution and dephasing of coherent electronic excitation in molecules in the time domain by the intrinsic streaking field generated by…
Controlling ultrafast currents by the non-linear photogalvanic effect
Georg Wachter, Shunsuke A. Sato, Christoph Lemell +3
We theoretically investigate the effect of broken inversion symmetry on the generation and control of ultrafast currents in a transparent dielectric (SiO2) by strong femto-second o…
Large optical field enhancement for nanotips with large opening angles
Sebastian Thomas, Georg Wachter, Christoph Lemell +2
We theoretically investigate the dependence of the enhancement of optical near-fields at nanometric tips on the shape, size, and material of the tip. We confirm a strong dependence…
Time-resolved photoemission using attosecond streaking
Stefan Nagele, Renate Pazourek, Michael Wais +2
We theoretically study time-resolved photoemission in atoms as probed by attosecond streaking. We review recent advances in the study of the photoelectric effect in the time domain…
Ab Initio Simulation of Electrical Currents Induced by Ultrafast Laser Excitation of Dielectric Materials
Georg Wachter, Christoph Lemell, Joachim Burgdörfer +3
We theoretically investigate the generation of ultrafast currents in insulators induced by strong few-cycle laser pulses. Ab initio simulations based on time-dependent density func…
Electron rescattering at metal nanotips induced by ultrashort laser pulses
Georg Wachter, Christoph Lemell, Joachim Burgdoerfer
We theoretically investigate the interaction of moderate intensity near-infrared few cycle laser pulses with nano-scale metal tips. Local field enhancement in a nanometric region a…
Electron emission from a metal nano-tip by ultrashort laser pulses
G Wachter, C Lemell, J Burgdörfer
We theoretically investigate the interaction of near-infrared few cycle laser pulses of moderate intensity with nano-scale metal tips. Macroscopic field enhancement leads to cohere…
Modelling surface restructuring by slow highly charged ions
G. Wachter, K. Tökési, G. Betz +2
We theoretically investigate surface modifications on alkaline earth halides due to highly charged ion impact, focusing on recent experimental evidence for both etch pit and nano-h…
Geometrical model fitting for interferometric data: GEM-FIND
D. Klotz, S. Sacuto, C. Paladini +2
We developed the tool GEM-FIND that allows to constrain the morphology and brightness distribution of objects. The software fits geometrical models to spectrally dispersed interfer…
Phase diagram for nanostructuring CaF surfaces by slow highly charged ions
A. S. El-Said, R. A. Wilhelm, R. Heller +6
Impacts of individual slow highly charged ions on alkaline earth halide and alkali halide surfaces create nano-scale surface modifications. For different materials and impact energ…
Electron rescattering at metal nanotips induced by ultrashort laser pulses
Georg Wachter, Christoph Lemell, Joachim Burgdörfer +3
We report on the first investigation of plateau and cut-off structures in photoelectron spectra from nano-scale metal tips interacting with few-cycle near-infrared laser pulses. Th…