547 citations · 9.5k across the 169 of their papers we have counts for
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Direct electrical modulation of surface response in a single plasmonic nanoresonator
Luka Zurak, Christian Wolff, Jessica Meier +4
Classical electrodynamics describes the optical response of systems using bulk electronic properties and infinitesimally thin boundaries. However, due to the quantum nature of elec…
Reconfigurable chirality with achiral excitonic materials in the strong-coupling regime
P. Elli Stamatopoulou, Sotiris Droulias, Guillermo P. Acuna +2
We introduce and theoretically analyze the concept of manipulating optical chirality via strong coupling of the optical modes of chiral nanostructures with excitonic transitions in…
Halevi's extension of the Euler-Drude model for plasmonic systems
Gino Wegner, Dan-Nha Huynh, N. Asger Mortensen +2
The nonlocal response of plasmonic materials and nanostructures is usually described within a hydrodynamic approach which is based on the Euler-Drude equation. In this work, we rec…
Gain-compensated cavities for the dynamic control of light-matter interactions
Christos Tserkezis, Christian Wolff, Fedor A. Shuklin +4
We propose an efficient approach for actively controlling the Rabi oscillations in emitter-cavity hybrids based on the presence of an element with optical gain. Inspired by recent…
Image polaritons in van der Waals crystals
Sergey G. Menabde, Jacob T. Heiden, Joel Cox +2
Polaritonic modes in low-dimensional materials enable strong light-matter interactions and provide a platform for light manipulation at nanoscale. Very recently, a new class of pol…
Quantum Nanophotonics in Two-Dimensional Materials
Antoine Reserbat-Plantey, Itai Epstein, Iacopo Torre +7
The field of 2D materials-based nanophotonics has been growing at a rapid pace, triggered by the ability to design nanophotonic systems with in situ control, unprecedented degrees…
Quantum surface effects in strong coupling dynamics
V. Karanikolas, I. Thanopulos, J. D. Cox +5
Plasmons in nanostructured metals are widely utilized to trigger strong light--matter interactions with quantum light sources. While the nonclassical behavior of such quantum emitt…
Anisotropic Second Harmonic Generation From Monocrystalline Gold Flakes
Sergejs Boroviks, Torgom Yezekyan, Álvaro Rodríguez Echarri +5
Noble metals with well-defined crystallographic orientation constitute an appealing class of materials for controlling light-matter interactions on the nanoscale. Nonlinear optical…
The importance of substrates for the visibility of "dark" plasmonic modes
Saskia Fiedler, Søren Raza, Ruoqi Ai +5
Dark plasmonic modes have interesting properties, such as a longer lifetime and a narrower linewidth than their radiative counterpart, as well as little to no radiative losses. How…
Engineering nanoparticles with pure high-order multipole scattering
Vladimir A. Zenin, Cesar E. Garcia-Ortiz, Andrey B. Evlyukhin +8
The ability to control scattering directionality of nanoparticles is in high demand for many nanophotonic applications. One of the challenges is to design nanoparticles producing p…
Direct generation of tunable orbital angular momentum beams in microring lasers with broadband exceptional points
William E. Hayenga, Jinhan Ren, Midya Parto +7
Non-Hermitian exceptional points (EPs) represent a special type of degeneracy where not only the eigenvalues coalesce, but also the eigenstates tend to collapse on each other. Rece…
On the time evolution at a fluctuating exceptional point
Christian Wolff, Christos Tserkezis, N. Asger Mortensen
We theoretically evaluate the impact of drift-free noise on the dynamics of -symmetric non-Hermitian systems with an exceptional point, which have recently been propo…
Direct characterization of near-field coupling in gap plasmon-based metasurfaces
Rucha Deshpande, Vladimir A. Zenin, Fei Ding +2
Metasurfaces based on gap surface-plasmon resonators allow one to arbitrarily control the phase, amplitude and polarization of reflected light with high efficiency. However, the pe…
Interference in edge-scattering from monocrystalline gold flakes
Sergejs Boroviks, Christian Wolff, Jes Linnet +6
We observe strongly dissimilar scattering from two types of edges in hexagonal quasi-monocrystalline gold flakes with thicknesses around 1 micron. We identify as the origin the int…
Modal expansions in periodic photonic systems with material loss and dispersion
Christian Wolff, Kurt Busch, N. Asger Mortensen
We study bandstructure properties of periodic optical systems composed of lossy and intrinsically dispersive materials. To this end, we develop an analytical framework based on adj…
Optical reconfiguration and polarization control in semi-continuous gold films close to the percolation threshold
Christian Frydendahl, Taavi Repän, Mathias Geisler +7
Controlling and confining light by exciting plasmons in resonant metallic nanostructures is an essential aspect of many new emerging optical technologies. Here we explore the possi…
Slow-light-enhanced energy efficiency for the graphene microheater on silicon photonic crystal waveguides
Siqi Yan, Xiaolong Zhu, Lars Hagedorn Frandsen +4
Slow light has been widely utilized to obtain enhanced nonlinearities, enhanced spontaneous emissions, and increased phase shifts owing to its ability to promote light-matter inter…
Graphene-plasmon polaritons: From fundamental properties to potential applications
Sanshui Xiao, Xiaolong Zhu, Bo-Hong Li +1
With the unique possibilities for controlling light in nanoscale devices, graphene plasmonics has opened new perspectives to the nanophotonics community with potential applications…
Localized Surface Plasmons in Vibrating Graphene Nanodisks
Weihua Wang, Bo-Hong Li, Erik Stassen +2
Localized surface plasmons are confined collective oscillations of electrons in metallic nanoparticles. When driven by light, the optical response is dictated by geometrical parame…
Absorption and eigenmode calculation for one-dimensional periodic metallic structures using the hydrodynamic approximation
Avner Yanai, N. Asger Mortensen, Uriel Levy
We develop a modal method that solves Maxwell's equations in the presence of the linearized hydrodynamic correction. Using this approach, it is now possible to calculate the full d…
Broadening of plasmonic resonance due to electron collisions with nanoparticle boundary: quantum-mechanical consideration
Alexander V. Uskov, Igor E. Protsenko, N. Asger Mortensen +1
We present a quantum mechanical approach to calculate broadening of plasmonic resonances in metallic nanostructures due to collisions of electrons with the surface of the structure…
Nonlocal response in thin-film waveguides: loss versus nonlocality and breaking of complementarity
Søren Raza, Thomas Christensen, Martijn Wubs +2
We investigate the effects of nonlocal response on the surface-plasmon polariton guiding properties of the metal-insulator (MI), metal-insulator-metal (MIM), and insulator-metal-in…
Hyperbolic metamaterial lens with hydrodynamic nonlocal response
Wei Yan, N. Asger Mortensen, Martijn Wubs
We investigate the effects of hydrodynamic nonlocal response in hyperbolic metamaterials (HMMs), focusing on the experimentally realizable parameter regime where unit cells are muc…
Experimental observation of plasmons in a graphene monolayer resting on a two-dimensional subwavelength silicon grating
Xiaolong Zhu, Wei Yan, Peter Uhd Jepsen +3
We experimentally demonstrate graphene-plasmon polariton excitation in a continuous graphene monolayer resting on a two-dimensional subwavelength silicon grating. The subwavelength…