547 citations · 9.5k across the 169 of their papers we have counts for
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Single-crystalline gold nanodisks on WS mono- and multilayers: Strong coupling at room temperature
Mathias Geisler, Ximin Cui, Jianfang Wang +11
Engineering light-matter interactions up to the strong-coupling regime at room temperature is one of the cornerstones of modern nanophotonics. Achieving this goal will enable new p…
Stimulated plasmon polariton scattering
Christian Wolff, N. Asger Mortensen
The plasmon and phonon polaritons of two-dimensional (2d) and van-der-Waals materials have recently gained substantial interest. Unfortunately, they are notoriously hard to observe…
Ultra-thin titanium nitride films for refractory spectral selectivity
Alexander S. Roberts, Manohar Chirumamilla, Deyong Wang +4
We demonstrate a selectively emitting optical Fabry-Pérot resonator based on a few-nm-thin continuous metallic titanium nitride film, separated by a dielectric spacer from an optic…
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…
Edge-dependent reflection and inherited fine structure of higher-order plasmons in graphene nanoribbons
Kåre Obel Wedel, N. Asger Mortensen, Kristian S. Thygesen +1
We investigate higher-order plasmons in graphene nanoribbons, and present how electronic edge states and wavefunction fine structure influence the graphene plasmons. Based on neare…
Circular dichroism in nanoparticle helices as a template for assessing quantum-informed models in plasmonics
Christos Tserkezis, A. T. Mina Yeşilyurt, Jer-Shing Huang +1
As characteristic lengths in plasmonics rapidly approach the sub-nm regime, quantum-informed models that can capture those aspects of the quantum nature of the electron gas that ar…
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…
Laser writing of bright colours on near-percolation plasmonic reflector arrays
Alexander S. Roberts, Sergey M. Novikov, Yuanqing Yang +5
Colouration by surface nanostructuring has attracted a great deal of attention by the virtue of making use of environment-friendly recyclable materials and generating non-bleaching…
Ultra-compact graphene plasmonic photodetector with the bandwidth over 110GHz
Yunhong Ding, Zhao Cheng, Xiaolong Zhu +7
Graphene-based photodetectors, taking advantage of high carrier mobility and broadband absorption in graphene, have recently experienced rapid development. However, their performan…
Emergent scale invariance of non-classical plasmons in graphene nanoribbons
Kåre Obel Wedel, N. Asger Mortensen, Kristian S. Thygesen +1
Using a nearest-neighbor tight-binding model we investigate quantum effects of plasmons on few-nanometer wide graphene nanoribbons, both for zigzag and armchair edge terminations.…
Mie-excitons: understanding strong coupling in dielectric nanoparticles
C. Tserkezis, P. A. D. Gonçalves, C. Wolff +3
We theoretically analyse the hybrid Mie-exciton optical modes arising from the strong coupling of excitons in organic dyes or transition-metal dichalcogenides with the Mie resonanc…
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…