193 citations · 1k across the 23 of their papers we have counts for
23 papers
Controlling Dual-Comb Soliton Motion inside a single Fiber Laser Cavity
Julia A. Lang, Sarah R. Hutter, Alfred Leitenstorfer +1
Ultrafast science builds on dynamic compositions of precisely timed light pulses1 and evolving sequences of pulses are observed inside almost every mode-locked laser. However, the…
Subcycle tomography of quantum light
Geehyun Yang, Matthias Kizmann, Alfred Leitenstorfer +1
Quantum light is considered to be one of the key resources of the coming second quantum revolution expected to give rise to groundbreaking technologies and applications. If the spa…
Tracing attosecond electron emission from a nanometric metal tip
Philip Dienstbier, Lennart Seiffert, Timo Paschen +4
Solids exposed to intense electric fields release electrons through tunnelling. This fundamental quantum process lies at the heart of various applications, ranging from high bright…
Few-femtosecond phase-sensitive detection of infrared electric fields with a third-order nonlinearity
Hannes Kempf, Philipp Sulzer, Andreas Liehl +2
Measuring an electric field waveform beyond radio frequencies is often accomplished via a second-order nonlinear interaction with a laser pulse shorter than half of the field's osc…
Ultrafast spontaneous spin switching in an antiferromagnet
Marvin A. Weiss, Andreas Herbst, Julius Schlegel +8
Owing to their high magnon frequencies, antiferromagnets are key materials for future high-speed spintronics. Picosecond switching of antiferromagnetic order has been viewed a mile…
Back action in quantum electro-optic sampling of electromagnetic vacuum fluctuations
T. L. M. Guedes, I. Vakulchyk, D. V. Seletskiy +3
The influence of measurement back action on electro-optic sampling of electromagnetic quantum fluctuations is investigated. Based on a cascaded treatment of the nonlinear interacti…
Realizing an Unruh-DeWitt detector through electro-optic sampling of the electromagnetic vacuum
Sho Onoe, Thiago L. M. Guedes, Andrey S. Moskalenko +3
A new theoretical framework to describe the experimental advances in electro-optic detection of broadband quantum states, specifically the quantum vacuum, is devised. By making use…
Quantum susceptibilities in time-domain sampling of electric field fluctuations
Matthias Kizmann, Andrey S. Moskalenko, Alfred Leitenstorfer +2
Electro-optic sampling has emerged as a new quantum technique enabling measurements of electric field fluctuations on subcycle time scales. Probing a second-order nonlinear materia…
Up to 70 THz bandwidth from implanted Ge photoconductive antenna excited by a fibre laser
Abhishek Singh, Alexej Pashkin, Stephan Winnerl +6
Phase-stable electromagnetic pulses in the THz frequency range offer several unique capabilities in time-resolved spectroscopy. However, the diversity of their application is limit…
Subcycle squeezing of light from a time flow perspective
Matthias Kizmann, Thiago Lucena de M. Guedes, Denis V. Seletskiy +3
Light as a carrier of information and energy plays a fundamental role in both general relativity and quantum physics, linking these areas that are still not fully compliant with ea…
Self-control of a passively phase-locked Er:fibre frequency comb
Andreas Liehl, David Fehrenbacher, Philipp Sulzer +5
Femtosecond frequency combs have boosted progress in various fields of precision metrology. Nevertheless, demanding applications such as front-end frequency and time standards, ult…
Mid Infrared Nonlinear Plasmonics using Germanium Nanoantennas on Silicon Substrates
Marco P. Fischer, Aaron Riede, Kevin Gallacher +8
We demonstrate third harmonic generation in plasmonic antennas made of highly doped germanium and designed to be resonant in the mid infrared. Owing to the near-field enhancement,…
Control of excitonic absorption by thickness variation in few-layer GaSe
Arne Budweg, Dinesh Yadav, Alexander Grupp +4
We control the thickness of GaSe on the level of individual layers and study the corresponding optical absorption via highly sensitive differential transmission measurements. Suppr…
Artifact Free Transient Near-Field Nanoscopy
Aaron Sternbach, James Hinton, Tetiana Slusar +11
We report on the first implementation of ultrafast near field nanoscopy carried out with the transient pseudoheterodyne detection method (Tr-pHD). This method is well suited for ef…
Subcycle Quantum Electrodynamics
Claudius Riek, Philipp Sulzer, Maximilian Seeger +4
Besides their stunning physical properties which are unmatched in a classical world, squeezed states of electromagnetic radiation bear advanced application potentials in quantum in…
Optical Activation of Germanium Plasmonic Antennas in the Mid Infrared
Marco P. Fischer, Christian Schmidt, Emilie Sakat +9
Impulsive interband excitation with femtosecond near-infrared pulses establishes a plasma response in intrinsic germanium structures fabricated on a silicon substrate. This direct…
Controlled Polar Asymmetry of Few-Cycle and Intense Mid-Infrared Pulses
Christian Schmidt, Johannes Bühler, Bernhard Mayer +3
We demonstrate synthesis of super-octave-spanning and phase-locked transients in the multi-terahertz frequency range with amplitudes exceeding 13 MV/cm. Sub-cycle polar asymmetry o…
Paraxial Theory of Direct Electro-Optic Sampling of the Quantum Vacuum
Andrey S. Moskalenko, Claudius Riek, Denis V. Seletskiy +2
Direct detection of vacuum fluctuations and analysis of sub-cycle quantum properties of the electric field are explored by a paraxial quantum theory of ultrafast electro-optic samp…
Ultrafast pseudospin dynamics in graphene
M. Trushin, A. Grupp, G. Soavi +8
Interband optical transitions in graphene are subject to pseudospin selection rules. Impulsive excitation with linearly polarized light generates an anisotropic photocarrier occupa…
Non-perturbative Interband Response of InSb Driven Off-resonantly by Few-cycle Electromagnetic Transients
F. Junginger, B. Mayer, C. Schmidt +5
Intense multi-THz pulses are used to study the coherent nonlinear response of bulk InSb by means of field-resolved four-wave mixing spectroscopy. At amplitudes above 5 MV/cm the si…
Ultrafast transient generation of spin-densitywave order in the normal state of BaFe2As2 driven by coherent lattice vibrations
K. W. Kim, A. Pashkin, H. Schäfer +7
The interplay among charge, spin and lattice degrees of freedom in solids gives rise to intriguing macroscopic quantum phenomena such as colossal magnetoresistance, multiferroicity…
Femtosecond nonlinear ultrasonics in gold probed with ultrashort surface plasmons
Vasily V. Temnov, Christoph Klieber, Keith A. Nelson +6
Fundamental interactions induced by lattice vibrations on ultrafast time scales become increasingly important for modern nanoscience and technology. Experimental access to the phys…
Single Defect Centers in Diamond Nanocrystals as Quantum Probes for Plasmonic Nanostructures
Andreas W. Schell, Günter Kewes, Tobias Hanke +4
We present two applications of a single nitrogen vacancy center in a nanodiamond as quantum probe for plasmonic nanostructures. Coupling to the nanostructures is achieved in a high…