192 citations · 1.8k across the 39 of their papers we have counts for
26 papers · 1 filter
Nonlocal and nonlinear plasmonics in atomically thin heterostructures
Line Jelver, Joel D. Cox
Plasmons in atomically thin materials offer a compelling route to trigger nonlinear light-matter interactions through extreme optical confinement in the two-dimensional (2D) limit.…
Plasmon polariton assisted second-harmonic generation in graphene
João M. Alendouro Pinho, Simão S. Cardoso, Yuliy V. Bludov +4
In this paper we present a theoretical examination of second-harmonic generation (SHG) in a graphene monolayer integrated within an attenuated total internal reflection (ATR) confi…
Nonreciprocal plasmons in one-dimensional carbon nanostructures
Álvaro Rodríguez Echarri, F. Javier García de Abajo, Joel D. Cox
The directional control of light in miniaturized plasmonic waveguides holds appealing possibilities for emerging nanophotonic technologies, but is hindered by the intrinsic recipro…
Chiral near-field control of quantum light generation using magneto-optical graphene
Mikkel Have Eriksen, Joel D. Cox
We theoretically explore strategies to actively control photon emission from quantum light sources by leveraging the large magneto-optical response of graphene. The quantum electro…
Nonlocal electrodynamics of two-dimensional anisotropic magneto-plasmons
A. J. Chaves, Line Jelver, D. R. da Costa +3
We present a hydrodynamic model, grounded in Madelung's formalism, to describe collective electronic motion in anisotropic materials. This model incorporates nonlocal contributions…
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…
Chiral Light-Matter Interactions with Thermal Magnetoplasmons in Graphene Nanodisks
Mikkel Have Eriksen, Juan R. Deop-Ruano, Joel D. Cox +1
We investigate the emergence of self-hybridized thermal magnetoplasmons in doped graphene nanodisks at finite temperatures when subjected to an external magnetic field. Using a sem…
Nonlinear thermoplasmonics in graphene nanostructures
Line Jelver, Joel D. Cox
The linear electronic dispersion relation of graphene endows the atomically thin carbon layer with a large intrinsic optical nonlinearity, with regard to both parametric and photot…
Nonlocal effects in atom-plasmon interactions
Mikkel Have Eriksen, Christos Tserkezis, N. Asger Mortensen +1
Nonlocal and quantum mechanical phenomena in noble metal nanostructures become increasingly crucial when the relevant length scales in hybrid nanostructures reach the few-nanometer…
Plasmons in phosphorene nanoribbons
Line Jelver, Joel D. Cox
Phosphorene has emerged as an atomically-thin platform for optoelectronics and nanophotonics due to its excellent nonlinear optical properties and the possibility of actively tunin…
Nonlinear photoluminescence in gold thin films
A. Rodríguez Echarri, F. Iyikanat, S. Boroviks +3
Promising applications in photonics are driven by the ability to fabricate crystal-quality metal thin films of controlled thickness down to a few nanometers. In particular, these m…
Giant enhancement of third-harmonic generation in graphene-metal heterostructures
Irati Alonso Calafell, Lee A. Rozema, David Alcaraz Iranzo +13
Nonlinear nanophotonics leverages engineered nanostructures to funnel light into small volumes and intensify nonlinear optical processes with spectral and spatial control. Due to i…
Polaritons in two-dimensional parabolic waveguides
T. P. Rasmussen, P. A. D. Gonçalves, Sanshui Xiao +3
The suite of highly confined polaritons supported by two-dimensional (2D) materials constitutes a versatile platform for nano-optics, offering the means to channel light on deep-su…
Surface-response functions obtained from equilibrium electron-density profiles
N. Asger Mortensen, P. A. D. Gonçalves, Fedor A. Shuklin +4
Surface-response functions are one of the most promising routes for bridging the gap between fully quantum-mechanical calculations and phenomenological models in quantum nanoplasmo…
Optical response of noble metal nanostructures: Quantum surface effects in crystallographic facets
A. Rodríguez Echarri, P. A. D. Gonçalves, C. Tserkezis +3
Noble metal nanostructures are ubiquitous elements in nano-optics, supporting plasmon modes that can focus light down to length scales commensurate with nonlocal effects associated…
Strong-field-driven dynamics and high-harmonic generation in interacting 1D systems
Sandra de Vega, Joel D. Cox, Fernando Sols +1
We explore the roles of electronic band structure and Coulomb interactions in solid-state HHG by studying the optical response of linear atomic chains and carbon nanotubes to inten…
On the applicability of quantum-optical concepts in strong-coupling nanophotonics
C. Tserkezis, A. I. Fernández-Domínguez, P. A. D. Gonçalves +7
Rooted in quantum optics and benefiting from its well-established foundations, strong coupling in nanophotonics has experienced increasing popularity in recent years. With nanophot…
Nonlinear atom-plasmon interactions enabled by nanostructured graphene
Joel D. Cox, F. Javier García de Abajo
Electrically tunable graphene plasmons are anticipated to enable strong light-matter interactions with resonant quantum emitters. However, plasmon resonances in graphene are typica…
Analytical Modeling of Graphene Plasmons
Renwen Yu, Joel D. Cox, J. R. M. Saavedra +1
The two-dimensionality of graphene and other layered materials can be exploited to simplify the theoretical description of their plasmonic and polaritonic modes. We present an anal…
How To Identify Plasmons from the Optical Response of Nanostructures
Runmin Zhang, Luca Bursi, Joel D. Cox +11
A promising trend in plasmonics involves shrinking the size of plasmon-supporting structures down to a few nanometers, thus enabling control over light-matter interaction at extrem…
Quantum Effects in the Nonlinear Response of Graphene Plasmons
Joel D. Cox, Iván Silveiro, F. Javier García de Abajo
The ability of graphene to support long-lived, electrically tunable plasmons that interact strongly with light, combined with its highly nonlinear optical response, has generated g…
Petahertz optical response in graphene
Matthias Baudisch, Andrea Marini, Joel D. Cox +8
The temporal dynamics of charge carriers determines the speed with which electronics can be realized in condensed matter, and their direct manipulation with optical fields promises…
Plasmon-assisted high-harmonic generation in graphene
Joel D. Cox, Andrea Marini, F. Javier García de Abajo
High-harmonic generation (HHG) in condensed-matter systems is both a source of fundamental insight into quantum electron motion and a promising candidate to realize compact ultravi…
Theory of graphene saturable absorption
A. Marini, J. D. Cox, F. J. Garcia de Abajo
Saturable absorption is a non-perturbative nonlinear optical phenomenon that plays a pivotal role in the generation of ultrafast light pulses. Here we show that this effect emerges…