- Sapienza University of RomeIT416 papers
- Institute for Complex SystemsIT322 papers
- Centre National de la Recherche ScientifiqueFR227 papers
- University of Rome Tor VergataIT202 papers
- University of PisaIT173 papers
- University of FlorenceIT157 papers
- Istituto Officina dei MaterialiIT150 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT135 papers
- National Institute of OpticsIT122 papers
- Istituto Nazionale di Fisica NucleareIT117 papers
- Politecnico di MilanoIT110 papers
- Istituto di Analisi dei Sistemi ed Informatica Antonio RubertiIT103 papers
6 papers · 2 filters
Optomechanical self-channelling of light in a suspended planar dual-nanoweb waveguide
Anna Butsch, Claudio Conti, Fabio Biancalana +1
It is shown that optomechanical forces can cause nonlinear self-channelling of light in a planar dual-slab waveguide. A system of two parallel silica nanowebs, spaced ~100 nm and s…
|ε|-Near-Zero materials in the near-infrared
Alessandro Ciattoni, Rino Marinelli, Carlo Rizza +1
We consider a mixture of metal coated quantum dots dispersed in a polymer matrix and, using a modified version of the standard Maxwell-Garnett mixing rule, we prove that the mixtur…
Singularity-driven Second and Third Harmonic Generation in a ε-near-zero nanolayer
M. A. Vincenti, D. de Ceglia, A. Ciattoni +1
We show a new path to ε~0 materials without resorting to metal-based metamaterial composites. A medium that can be modeled using Lorentz oscillators usually displays ε=0 crossing p…
Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies
Carlo Rizza, Andrea Di Falco, Alessandro Ciattoni
We have fabricated a layered nano-composite by alternating metal and gain medium layers, the gain dielectric consisting of a polymer incorporating optically pumped dye molecules. E…
Subwavelength optical spatial solitons and three-dimensional localization in disordered ferroelectrics: towards metamaterials of nonlinear origin
Claudio Conti, Aharon J. Agranat, Eugenio DelRe
We predict the existence of a novel class of multidimensional light localizations in out-of-equilibrium ferroelectric crystals. In two dimensions, the non-diffracting beams form at…
All-optical active plasmonic devices with memory and power switching functionalities based on epsilon-near-zero nonlinear metamaterials
Alessandro Ciattoni, Carlo Rizza, Elia Palange
All-optical active plasmonic devices are of fundamental importance for designing efficient nanophotonic circuits. We theoretically propose and numerically investigate an active pla…