547 citations · 6.2k across the 93 of their papers we have counts for
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Creation and Microscopic Origins of Single-Photon Emitters in Transition Metal Dichalcogenides and Hexagonal Boron Nitride
Amedeo Carbone, Diane-Pernille Bendixen-Fernex de Mongex, Arkady V. Krasheninnikov +6
We highlight recent advances in the controlled creation of single-photon emitters in van der Waals materials and in the understanding of their atomistic origin. We focus on quantum…
Roadmap on Nonlocality in Photonic Materials and Metamaterials
Francesco Monticone, N. Asger Mortensen, Antonio I. Fernández-Domínguez +63
Photonic technologies continue to drive the quest for new optical materials with unprecedented responses. A major frontier in this field is the exploration of nonlocal (spatially d…
Quantifying the creation of negatively charged boron vacancies in He-ion irradiated hexagonal boron nitride
Amedeo Carbone, Ilia D. Breev, Johannes Figueiredo +10
Hexagonal boron nitride (hBN) hosts luminescent defects possessing spin qualities compatible with quantum sensing protocols at room temperature. Vacancies, in particular, are readi…
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…
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…
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.…
Two-fluid hydrodynamic model for semiconductors
Johan R. Maack, N. Asger Mortensen, Martijn Wubs
The hydrodynamic Drude model (HDM) has been successful in describing the optical properties of metallic nanostructures, but for semiconductors where several different kinds of char…
Robustness of the Rabi splitting under nonlocal corrections in plexcitonics
Christos Tserkezis, Martijn Wubs, N. Asger Mortensen
We explore theoretically how nonlocal corrections in the description of the metal affect the strong coupling between excitons and plasmons in typical examples where nonlocal effect…
Size-dependent nonlocal effects in plasmonic semiconductor particles
J. R. Maack, N. A. Mortensen, M. Wubs
Localized surface plasmons (LSP) in semiconductor particles are expected to exhibit spatial nonlocal response effects as the geometry enters the nanometer scale. To investigate the…
How nonlocal damping reduces plasmon-enhanced fluorescence in ultranarrow gaps
Christos Tserkezis, N. Asger Mortensen, Martijn Wubs
The nonclassical modification of plasmon-assisted fluorescence enhancement is theoretically explored by placing two-level dipole emitters at the narrow gaps encountered in canonica…
Robustness of the far-field response of nonlocal plasmonic ensembles
Christos Tserkezis, Johan R. Maack, Zhaowei Liu +2
Contrary to classical predictions, the optical response of few-nm plasmonic particles depends on particle size due to effects such as nonlocality and electron spill-out. Ensembles…
Kerr nonlinearity and plasmonic bistability in graphene nanoribbons
Thomas Christensen, Wei Yan, Antti-Pekka Jauho +2
We theoretically examine the role of Kerr nonlinearities for graphene plasmonics in nanostructures, specifically in nanoribbons. The nonlinear Kerr interaction is included semiclas…
Projected-Dipole Model for Quantum Plasmonics
Wei Yan, Martijn Wubs, N. Asger Mortensen
Quantum effects of plasmonic phenomena have been explored through ab-initio studies, but only for exceedingly small metallic nanostructures, leaving most experimentally relevant st…
Localized plasmons in graphene-coated nanospheres
Thomas Christensen, Antti-Pekka Jauho, Martijn Wubs +1
We present an analytical derivation of the electromagnetic response of a spherical object coated by a conductive film, here exemplified by a graphene coating. Applying the framewor…
Plasmonic eigenmodes in individual and bow-tie graphene nanotriangles
Weihua Wang, Thomas Christensen, Antti-Pekka Jauho +3
Serving as a new two-dimensional plasmonic material, graphene has stimulated an intensive study of its optical properties which benefit from the unique electronic band structure of…
Classical and Quantum Plasmonics in Graphene Nanodisks: the Role of Edge States
Thomas Christensen, Weihua Wang, Antti-Pekka Jauho +2
Edge states are ubiquitous for many condensed matter systems with multicomponent wave functions. For example, edge states play a crucial role in transport in zigzag graphene nanori…
Nonlocal Response of Metallic Nanospheres Probed by Light, Electrons, and Atoms
Thomas Christensen, Wei Yan, Søren Raza +3
Inspired by recent measurements on individual metallic nanospheres that can not be explained with traditional classical electrodynamics, we theoretically investigate the effects of…
Generalized nonlocal optical response in nanoplasmonics
N. Asger Mortensen, Søren Raza, Martijn Wubs +2
Metallic nanostructures exhibit a multitude of optical resonances associated with localized surface plasmon excitations. Recent observations of plasmonic phenomena at the sub-nanom…
Extremely confined gap surface plasmon modes excited by electrons
Søren Raza, Nicolas Stenger, Anders Pors +7
High spatial and energy resolution EELS can be employed for detailed characterization of both localized and propagating surface plasmon excitations supported by metal nanostructure…
Green function surface-integral method for nonlocal response of plasmonic nanowires in arbitrary dielectric environments
Wei Yan, N. Asger Mortensen, Martijn Wubs
We develop a nonlocal-response generalization to the Green-function surface-integral method (GSIM), also known as the boundary-element method (BEM). This numerically light method c…
Blueshift of the surface plasmon resonance in silver nanoparticles studied with EELS
Søren Raza, Nicolas Stenger, Shima Kadkhodazadeh +6
We study the surface plasmon (SP) resonance energy of isolated spherical Ag nanoparticles dispersed on a silicon nitride substrate in the diameter range 3.5-26 nm with monochromate…
Quantum optical effective-medium theory for loss-compensated metamaterials
Ehsan Amooghorban, N. Asger Mortensen, Martijn Wubs
A central aim in metamaterial research is to engineer sub-wavelength unit cells that give rise to desired effective-medium properties and parameters, such as a negative refractive…
Modified field enhancement in plasmonic nanowire dimers due to nonlocal response
Giuseppe Toscano, Søren Raza, Antti-Pekka Jauho +2
We study the effect of nonlocal optical response on the optical properties of metallic nanowires, by numerically implementing the hydrodynamical Drude model for arbitrary nanowire…
Unusual resonances in nanoplasmonic structures due to nonlocal response
Søren Raza, Giuseppe Toscano, Antti-Pekka Jauho +2
We study the nonlocal response of a confined electron gas within the hydrodynamical Drude model. We address the question whether plasmonic nanostructures exhibit nonlocal resonance…