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- 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
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- National Institute of OpticsIT122 papers
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- Politecnico di MilanoIT110 papers
- Istituto di Analisi dei Sistemi ed Informatica Antonio RubertiIT103 papers
8 papers · 2 filters
Terahertz optically tunable dielectric metamaterials without microfabrication
Carlo Rizza, Alessandro Ciattoni, Lorenzo Columbo +2
We theoretically investigate the terahertz dielectric response of a semiconductor slab hosting an infrared photoinduced grating. The periodic structure is due to the charge carries…
A vertically-coupled liquid-crystal long-range plasmonic optical switch
Dimitrios C. Zografopoulos, Romeo Beccherelli
An optical switch based on liquid-crystal tunable long-range metal stripe waveguides is proposed and theoretically investigated. A nematic liquid crystal layer placed between a ver…
Distributed Raman optical amplification in phase coherent transfer of optical frequencies
Cecilia Clivati, Gabriele Bolognini, Davide Calonico +4
We describe the application of Raman Optical-fiber Amplification (ROA) for the phase coherent transfer of optical frequencies in an optical fiber link. ROA uses the transmission fi…
Terahertz active spatial filtering through optically tunable hyperbolic metamaterials
Carlo Rizza, Alessandro Ciattoni, Elisa Spinozzi +1
We theoretically consider infrared-driven hyperbolic metamaterials able to spatially filtering terahertz radiation. The metamaterial is a slab made of alternating semiconductor and…
Metallo-dielectric hybrid antennas for ultrastrong enhancement of spontaneous emission
Xue-Wen Chen, Mario Agio, Vahid Sandoghdar
We devise new optical antennas that reduce the excited-state radiative lifetimes of emitters to the order of 100 femtoseconds while maintaining quantum efficiencies of about 80% at…
Measurement of scaling laws for shock waves in thermal nonlocal media
N. Ghofraniha, L. Santamaria Amato, V. Folli +3
We are able to detect the details of spatial optical collisionless wave-breaking through the high aperture imaging of a beam suffering shock in a fluorescent nonlinear nonlocal the…