27 citations · 67 across the 17 of their papers we have counts for
19 papers
Probing temperature dependent non-radiative decay channels in CrSBr with nonlinear optics
Minjiang Dan, Till Weickhardt, Paul Herrmann +9
Among the recently discovered layered magnetic materials, the antiferromagnet CrSBr has attracted considerable interest thanks to its stability, quasi-one-dimensional crystal struc…
Ultrafast tuning of the focusing efficiency of a nonlinear atomically thin lens
Rahil Rezwan, Bernardo Dias, Tom Hoekstra +10
Control over light focusing is paramount for optical and imaging systems. However, its implementation in active and integrated nanophotonic devices is hindered by the bulky and sta…
All-Optical Control of Interfacial Polarization in MoS/WSe Heterobilayers
Muhammad Sufyan Ramzan, Giancarlo Soavi, Caterina Cocchi
All-optical tuning of van der Waals heterostructures with coherent radiation offers a promising path toward ultrafast memory and optoelectronic devices. In the first-principles fra…
Twist-angle Control of Nonlinear Interference in a ZnO Nanowire/Monolayer WSe Hybrid Structure
Maximilian Tomoscheit, Benedikt Mathes, Alexander Zaunick +6
Nanoscale devices that integrate materials of different dimensionalities (0D, 1D, and 2D) hold great potential for advanced applications in photonics and optoelectronics. A fundame…
Highly Efficient Exciton Modulation in MoSe/PdSe Heterostructures
Petr Rozhin, Emma Contin, Danae Katrisioti +15
Controlling exciton recombination in atomically thin semiconductors is central to their optoelectronic functionality, as the competition between radiative and non-radiative decay c…
Nonlinear Circular Dichroism Reveals the Local Berry Curvature
Nele Tornow, Paul Herrmann, Clemens Schneider +3
Light-matter interactions are governed by conservation laws of energy and momentum. For harmonic generation in crystalline solids, energy conservation imposes that incoming pho…
Valleytronics in 2D Materials Roadmap
Kyle L. Seyler, Giancarlo Soavi, Bent Weber +30
Valleytronics exploits non-equivalent energy extrema in the electronic band structure of crystalline solids -- the valley degree of freedom -- to encode, manipulate, and read out i…
Photoluminescence Quenching in WSe via p-Doping Induced by Functionalized Rylene Dyes
Ana M. Valencia, Theresa Kuechle, Maximiliam Tomoscheit +6
Hybrid heterostructures combining transition metal dichalcogenides (TMDs) with light-harvesting dyes are promising materials for next-generation optoelectronics. Yet, controlling a…
Tunable Resonant Metasurfaces Empowered by Atomically Thin Semiconductors
Alexey Ustinov, Ángela Barreda, Duk-Yong Choi +4
Nanophotonics has recently gained new momentum with the emergence of a novel class of nanophotonic systems consisting of resonant dielectric nanostructures integrated with single o…
Photonics in Flatland: Challenges and Opportunities for Nanophotonics with 2D Semiconductors
Ali Azimi, Julien Barrier, Angela Barreda +45
Two-dimensional (2D) semiconductors are emerging as a versatile platform for nanophotonics, offering unprecedented tunability in optical properties through exciton resonance engine…
Direct measurement of broken time-reversal symmetry in centrosymmetric and non-centrosymmetric atomically thin crystals with nonlinear Kerr rotation
Florentine Friedrich, Paul Herrmann, Shridhar Sanjay Shanbhag +3
Time-reversal symmetry, together with space-inversion symmetry, is one of the defining properties of crystals, underlying phenomena such as magnetism, topology and non-trivial spin…
Ultrafast Coherent Bandgap Modulation Probed by Parametric Nonlinear Optics
Sebastian Klimmer, Thomas Lettau, Laura Valencia Molina +5
Light-matter interactions in crystals are powerful tools that seamlessly allow both functionalities of sizeable bandgap modulation and non-invasive spectroscopy. While we often ass…
The role of Berry curvature derivatives in the optical activity of time-invariant crystals
Giancarlo Soavi, Jan Wilhelm
Quantum geometry and topology are fundamental concepts of modern condensed matter physics, underpinning phenomena ranging from the quantum Hall effect to protected surface states.…
Intrinsically chiral exciton polaritons in an atomically-thin semiconductor
Matthias J. Wurdack, Ivan Iorsh, Sarka Vavreckova +15
Photonic bound states in the continuum (BICs) have emerged as a versatile tool for enhancing light-matter interactions by strongly confining light fields. Chiral BICs are photonic…
High Performance Graphene Integrated Photonics Platform Enabled by Gold-assisted Transfer
Xiaoxuan Wu, Zhengyi Cao, Tianxiang Zhao +11
Graphene is promising for nanoscale, efficient, ultra-fast photo- and opto-electronic devices because of its remarkable electrical and optical properties, such as fast electron rel…
Unveiling the Role of Electron-Phonon Scattering in Dephasing High-Order Harmonics in Solids
Viacheslav Korolev, Thomas Lettau, Vipin Krishna +8
High-order harmonic generation (HHG) in solids is profoundly influenced by the dephasing of the coherent electron-hole motion driven by an external laser field. The exact physical…
Ultrafast Opto-Electronic and Thermal Tuning of Third-Harmonic Generation in a Graphene Field Effect Transistor
Omid Ghaebi, Sebastian Klimmer, Nele Tornow +6
Graphene is a unique platform for tunable opto-electronic applications thanks to its linear band dispersion, which allows electrical control of resonant light-matter interactions.…
Ultrafast all-optical second harmonic wavefront shaping
A. Sinelnik, S. H. Lam, F. Coviello +6
Optical communication can be revolutionized by encoding data into the orbital angular momentum of light beams. However, state-of-the-art approaches for dynamic control of complex o…
Valley Polarization-Electric Dipole Interference and Nonlinear Chiral Selection Rules in Monolayer WSe
Paul Herrmann, Sebastian Klimmer, Till Weickhardt +6
In monolayer transition metal dichalcogenides time-reversal symmetry, combined with space-inversion symmetry, defines the spin-valley degree of freedom. As such, engineering and co…