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12 papers · 2 filters
Atomic-scale confinement of optical fields
Johannes Kern, Swen Grossmann, Nadezda V. Tarakina +7
In the presence of matter there is no fundamental limit preventing confinement of visible light even down to atomic scales. Achieving such confinement and the corresponding intensi…
Time-reversed optical parametric oscillation
Stefano Longhi
In recent works, the idea of time-reversed laser oscillation has been proposed and demonstrated to realize a two-channel coherent perfect absorber [Y.D. Chong et al., Phys. Rev. Le…
Coherent perfect absorption in a homogeneously-broadened two-level medium
Stefano Longhi
In recent works, it has been shown rather generally that the time-reversed process of lasing at threshold realizes a coherent perfect absorber (CPA). In a CPA, a lossy medium in an…
Classical Simulation of Relativistic Quantum Mechanics in Periodic Optical Structures
Stefano Longhi
Spatial and/or temporal propagation of light waves in periodic optical structures offers a rather unique possibility to realize in a purely classical setting the optical analogues…
Delayed optical nonlinearity of thin metal films
Matteo Conforti, Giuseppe Della Valle
Metals typically have very large nonlinear susceptibilities, whose origin is mainly of thermal character. We model the cubic nonlinearity of thin metal films by means of a delayed…
Dynamics of four-photon photoluminescence in gold nanoantennas
P. Biagioni, D. Brida, J. -S. Huang +5
Two-pulse correlation is employed to investigate the temporal dynamics of both two-photon photoluminescence (2PPL) and four-photon photoluminescence (4PPL) in resonant and nonreson…