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The remarkably-high intrinsic optical nonlinearity of graphene can be pushed even further when the optical frequency is tuned to plasmon resonances hosted by the material when it is doped [1-4]. Atomistic simulations provide an accurate description of these phenomena, although their computational cost is prohibitive for large graphene nanostructures [3, 4]. An alternative formalism consists in relying...
High-harmonic generation (HHG) is an extreme nonlinear optical phenomenon that is traditionally realized by driving atomic gases with intense ultrashort optical pulses, and usually relies on bulky laser amplification schemes to reach the enormous requisite electric field intensities. The realization of efficient HHG in solid-state systems is anticipated to pave the way for compact ultraviolet and...
Energy-efficient, ultrafast, bistable systems operating at ambient temperature are the cores of modern information processing devices based on electronics and optics [1]. Graphene, single atomic layer of carbon atoms arranged in hexagonal lattice, is now considered to possess strong nonlinear optical properties, due to its massless Dirac-fermionic feature [2, 3]. Furthermore, recent theoretical studies...
Plasmons-the collective oscillations of electrons in conducting materials-play a pivotal role in nanophotonics because of their ability to couple electronic and photonic degrees of freedom. In particular, plasmons in graphene-the atomically thin carbon material-offer strong spatial confinement and long lifetimes, accompanied by extraordinary optoelectronic properties derived from its peculiar electronic...
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