Search Results - "de Ceglia, D."
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Harmonic generation from gold nanolayers: bound and hot electron contributions to nonlinear dispersion
Published in Optics express (15-03-2021)“…Understanding how light interacts with matter at the nanoscale is pivotal if one is to properly engineer nano-antennas, filters and other devices whose…”
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Graphene-based perfect optical absorbers harnessing guided mode resonances
Published in Optics express (10-08-2015)“…We investigate graphene-based optical absorbers that exploit guided mode resonances (GMRs) attaining theoretically perfect absorption over a bandwidth of few…”
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3
Optically transparent microwave screens based on engineered graphene layers
Published in Optics express (03-10-2016)“…We propose an innovative approach for the realization of a microwave absorber fully transparent in the optical regime. This device is based on the Salisbury…”
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Self-tuning of second-harmonic generation in GaAs nanowires enabled by nonlinear absorption
Published in Optics express (28-10-2019)Get full text
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5
Stacked chalcogenide metasurfaces for third harmonic generation in the UV range
Published in New journal of physics (01-03-2022)“…Abstract We show that an appropriately designed chalcogenide metasurface allows the enhancement of harmonic generation in the UV range, a regime that…”
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Local treatment with deep percutaneous electrochemotherapy of different tumor lesions: pain relief and objective response results from an observational study
Published in European review for medical and pharmacological sciences (01-07-2020)“…The aim of this investigation focuses on the evaluation of the efficacy of deep-seated Electrochemotherapy (ECT) in terms of pain relief and local objective…”
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Experimental demonstration of plasmonic Brewster angle extraordinary transmission through extreme subwavelength slit arrays in the microwave
Published in Physical review. B, Condensed matter and materials physics (15-05-2012)“…We experimentally demonstrate the existence of a Brewster-like broadband extraordinary optical transmission band, in a very thick metal plate with an array of…”
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8
Absorption and Losses in One-Dimensional Photonic-Crystal-Based Absorbers Incorporating Graphene
Published in IEEE photonics journal (01-12-2014)“…We investigate the linear response of single and multiple graphene sheets embedded in quarter-wave one-dimensional photonic crystals (PhCs) in terms of…”
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Second and third harmonic generation from gold nanolayers: experiment versus theory
Published in EPJ Web of conferences (2021)“…The use of semiconductors, metals, or ordinary dielectrics in the process of fabrication of nanodevices is at the front edge of nowadays technology, exploiting…”
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Second- and third-harmonic generation in metal-based structures
Published in Physical review. A, Atomic, molecular, and optical physics (18-10-2010)“…We present a theoretical approach to the study of second- and third-harmonic generation from metallic structures and nanocavities filled with a nonlinear…”
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ENZ materials and anisotropy: enhancing nonlinear optical interactions at the nanoscale
Published in Optics express (12-10-2020)“…Epsilon-near-zero materials are exceptional candidates for studying electrodynamics and nonlinear optical processes at the nanoscale. We demonstrate that by…”
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2D plasmonic gold nano-patches for linear and nonlinear applications
Published in Microelectronic engineering (01-11-2013)“…•Different plasmonic resonances can be excited in 2D gold square nanopatch arrays.•The fabricated devices are insensitive to light polarization.•A plasmonic…”
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Graphene-based absorber exploiting guided mode resonances in one-dimensional gratings
Published in Optics express (15-12-2014)“…A one-dimensional dielectric grating, based on a simple geometry, is proposed and investigated to enhance light absorption in a monolayer graphene exploiting…”
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14
Nonlinear dynamics in low permittivity media: the impact of losses
Published in Optics express (02-12-2013)“…Slabs of materials with near-zero permittivity display enhanced nonlinear processes. We show that field enhancement due to the continuity of the longitudinal…”
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15
Third-harmonic generation in one-dimensional photonic crystal with graphene-based defect
Published in Physical review. B, Condensed matter and materials physics (30-04-2014)“…Third-harmonic generation may be dramatically enhanced in monolayer graphene by inserting it in a properly designed structure. In addition, placing graphene…”
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Harmonic generation in metallic, GaAs-filled nanocavities in the enhanced transmission regime at visible and UV wavelengths
Published in Optics express (31-01-2011)“…We have conducted a theoretical study of harmonic generation from a silver grating having slits filled with GaAs. By working in the enhanced transmission…”
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Journal Article Publication -
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Below the surface: Unraveling the intricacies of the nonlinear optical properties of aluminum through bound electrons
Published in APL photonics (01-08-2024)“…By uncovering novel aspects of second harmonic generation in aluminum, we show that there are unusual and remarkable consequences of resonant absorption,…”
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Reevaluation of radiation reaction and consequences for light-matter interactions at the nanoscale
Published in Optics express (09-07-2018)“…In the context of electromagnetism and nonlinear optical interactions, damping is generally introduced as a phenomenological, viscous term that dissipates…”
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Optical Limiting Sensor Based on Multilayer Optimization of Ag/VO2 Phase Change Material
Published in IEEE sensors letters (01-09-2023)“…An optical limiting sensor working in the infrared (IR) was developed to address the need for eye and sensor protection against laser threats. Metallic and…”
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Color control through plasmonic metal gratings
Published in Applied physics letters (14-05-2012)“…We experimentally demonstrate the color tuning abilities of two-dimensional periodic arrays of gold nano-patches on silicon substrate. We observe that changes…”
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