Search Results - "Dal Negro, Luca"
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Physics-informed neural networks for inverse problems in nano-optics and metamaterials
Published in Optics express (13-04-2020)“…In this paper, we employ the emerging paradigm of physics-informed neural networks (PINNs) for the solution of representative inverse scattering problems in…”
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2
Enhanced Second Harmonic Generation by Photonic–Plasmonic Fano-Type Coupling in Nanoplasmonic Arrays
Published in Nano letters (10-07-2013)“…In this communication, we systematically investigate the effects of Fano-type coupling between long-range photonic resonances and localized surface plasmons on…”
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3
Wide tuning of the optical and structural properties of alternative plasmonic materials
Published in Optical materials express (01-11-2015)“…Alternative plasmonic materials have attracted considerable attention due to their advantages compared to conventional metals, including compatibility with Si…”
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4
Broadband Electroabsorption Modulators Design Based on Epsilon-Near-Zero Indium Tin Oxide
Published in IEEE journal of selected topics in quantum electronics (01-07-2015)“…In this paper, we propose a compact silicon (Si) electroabsorption modulator based on a slot waveguide with epsilon-near-zero indium tin oxide materials. In…”
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5
Fractional Transport of Photons in Deterministic Aperiodic Structures
Published in Scientific reports (23-05-2017)“…The propagation of optical pulses through primary types of deterministic aperiodic structures is numerically studied in time domain using the rigorous transfer…”
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6
Theory of coupled plasmon modes and Fano-like resonances in subwavelength metal structures
Published in Physical review. B, Condensed matter and materials physics (10-10-2013)“…In this paper, we develop a quasielectrostatic theory describing the coupling of plasmon modes and we discuss its implications for the analysis and the design…”
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7
Tunability of indium tin oxide materials for mid-infrared plasmonics applications
Published in Optical materials express (01-08-2017)“…Transparent conductive oxides (TCOs) have emerged as alternative plasmonic materials in recent years to replace noble metals. The advantages of TCOs include…”
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8
Nano- and Micropatterning of Optically Transparent, Mechanically Robust, Biocompatible Silk Fibroin Films
Published in Advanced materials (Weinheim) (18-08-2008)“…Regular nanometer‐scale patterning down to a few tens of nanometers and the manufacturing of diffractive optical elements in silk by using the ideas of soft…”
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9
Silver Nanoparticles with Broad Multiband Linear Optical Absorption
Published in Angewandte Chemie (International ed.) (01-01-2009)“…A simple one‐pot method produces silver nanoparticles coated with aryl thiols that show intense, broad nonplasmonic optical properties. The synthesis works…”
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10
Engineering Photonic–Plasmonic Coupling in Metal Nanoparticle Necklaces
Published in ACS nano (23-08-2011)“…In this paper, by combining three-dimensional finite-difference time-domain simulations, dark-field scattering analysis, and surface-enhanced Raman…”
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11
Rapid Nanoimprinting of Silk Fibroin Films for Biophotonic Applications
Published in Advanced materials (Weinheim) (18-04-2010)“…With soft micro‐ and nanopatterned materials becoming increasingly useful for various, optical, mechanical, electronic, microfluidic, and optofluidic devices,…”
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12
Photonic–Plasmonic Coupling of GaAs Single Nanowires to Optical Nanoantennas
Published in Nano letters (14-05-2014)“…We successfully demonstrate the plasmonic coupling between metal nanoantennas and individual GaAs nanowires (NWs). In particular, by using dark-field…”
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13
Photonic-Plasmonic Scattering Resonances in Deterministic Aperiodic Structures
Published in Nano letters (01-08-2008)“…In this paper, we combine experimental dark-field scattering spectroscopy and accurate electrodynamics calculations to investigate the scattering properties of…”
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14
Deep-Ultraviolet Emitting AlGaN Multiple Quantum Well Graded-Index Separate-Confinement Heterostructures Grown by MBE on SiC Substrates
Published in IEEE photonics journal (01-08-2017)“…Deep-ultraviolet emitting structures based on Al 0.65 Ga 0.35 N/Al 0.8 Ga 0.2 N multiple quantum wells (MQWs), embedded in compositionally graded Al x Ga 1-x N…”
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15
Structural and Spectral Properties of Deterministic Aperiodic Optical Structures
Published in Crystals (Basel) (09-12-2016)“…In this comprehensive paper we have addressed structure-property relationships in a number of representative systems with periodic, random, quasi-periodic and…”
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16
Spatial and spectral detection of protein monolayers with deterministic aperiodic arrays of metal nanoparticles
Published in Proceedings of the National Academy of Sciences - PNAS (06-07-2010)“…Light scattering phenomena in periodic systems have been investigated for decades in optics and photonics. Their classical description relies on Bragg…”
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17
Engineering non-radiative anapole modes for broadband absorption enhancement of light
Published in Optics express (22-08-2016)“…In this paper, we propose a novel, frequency- and angularly- broadband approach to achieve absorption rate enhancement in high-index dielectric nanostructures…”
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18
Gate-tunable metafilm absorber based on indium silicon oxide
Published in Nanophotonics (Berlin, Germany) (01-10-2019)“…In this work, reconfigurable metafilm absorbers based on indium silicon oxide (ISO) were investigated. The metafilm absorbers consist of nanoscale metallic…”
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19
Linewidth narrowing and Purcell enhancement in photonic crystal cavities on an Er-doped silicon nitride platform
Published in Optics express (01-02-2010)“…Light emission at 1.54 microm from an Er-doped amorphous silicon nitride layer coupled to photonic crystal resonators at cryogenic and room temperatures and…”
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20
Optical super-resolution by high-index liquid-immersed microspheres
Published in Applied physics letters (01-10-2012)“…It is experimentally shown that barium titanate glass microspheres with diameters (D) in the range 2–220 μm and with high refractive index (n ∼ 1.9–2.1) can be…”
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