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Microscopic theory of plasmon-enabled resonant terahertz detection in bilayer graphene
Andrea Tomadin, Matteo Carrega, Marco Polini
The electron gas hosted in a two-dimensional solid-state matrix, such as a quantum well or a two-dimensional van der Waals heterostructure, supports the propagation of plasma waves…
Tunable broadband light emission from graphene
Lavinia Ghirardini, Eva A. A. Pogna, Giancarlo Soavi +12
Graphene is an ideal material for integrated nonlinear optics thanks to its strong light-matter interaction and large nonlinear optical susceptibility. Graphene has been used in op…
Graphene Plasmonic Fractal Metamaterials for Broadband Photodetectors
Francesco De Nicola, Nikhil Santh Puthiya Purayil, Vaidotas Miŝeikis +6
Metamaterials have recently established a new paradigm for enhanced light absorption in state-of-the-art photodetectors. Here, we demonstrate broadband, highly efficient, polarizat…
Optical and plasmonic properties of twisted bilayer graphene: Impact of interlayer tunneling asymmetry and ground-state charge inhomogeneity
Pietro Novelli, Iacopo Torre, Frank H. L. Koppens +2
We present a theoretical study of the local optical conductivity, plasmon spectra, and thermoelectric properties of twisted bilayer graphene (TBG) at different filling factors and…
Theory of Photon Condensation in a Spatially-Varying Electromagnetic Field
G. M. Andolina, F. M. D. Pellegrino, V. Giovannetti +2
The realization of equilibrium superradiant quantum phases (photon condensates) in a spatially-uniform quantum cavity field is forbidden by a "no-go" theorem stemming from gauge in…
Graphene Plasmonics: a Novel Fully Atomistic Approach for Realistic Structures
Tommaso Giovannini, Luca Bonatti, Marco Polini +1
We demonstrate that the plasmonic properties of realistic graphene and graphene-based materials can effectively and accurately be modeled by a novel, fully atomistic, yet classical…