Zobrazeno 1 - 10
of 213
pro vyhledávání: '"Maria Antonietta VINCENTI"'
Autor:
Domenico de Ceglia, Laure Coudrat, Iännis Roland, Maria Antonietta Vincenti, Michael Scalora, Rana Tanos, Julien Claudon, Jean-Michel Gérard, Aloyse Degiron, Giuseppe Leo, Costantino De Angelis
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Tunable generation of vortex beams holds relevance in various fields, including communications and sensing. In this paper, we demonstrate the feasibility of nonlinear spin-orbit interactions in thin films of materials with second-order nonli
Externí odkaz:
https://doaj.org/article/167ef0fa5e5b400e985a01477944e9e0
Autor:
Andrea Tognazzi, Paolo Franceschini, Thi Ngoc Lam Tran, Alessandro Chiasera, Maria Antonietta Vincenti, Alfonso Carmelo Cino, Neset Akozbek, Michael Scalora, Costantino De Angelis
Publikováno v:
Optical Materials: X, Vol 19, Iss , Pp 100242- (2023)
The Z-Scan technique is an easy and widespread approach to evaluate the nonlinear optical coefficient of materials. However, the evaluation of the same coefficients for thin films requires complex experimental setups that allow to remove the contribu
Externí odkaz:
https://doaj.org/article/d8899adaae994b9bab6a2c184ff0df54
Autor:
Jiannan Gao, Maria Antonietta Vincenti, Jesse Frantz, Anthony Clabeau, Xingdu Qiao, Liang Feng, Michael Scalora, Natalia M. Litchinitser
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-5 (2021)
The use of chalcogenide glass in optical science and applications at the UV frequencies has been so far hindered by its absorption in this spectral region. Here the authors demonstrate that a nanostructured chalcogenide glass can efficiently generate
Externí odkaz:
https://doaj.org/article/3dd8ca80b5f2445bba1ef17b048c73c8
Autor:
Davide Rocco, Carlo Gigli, Luca Carletti, Giuseppe Marino, Maria Antonietta Vincenti, Giuseppe Leo, Costantino De Angelis
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 3, Pp 1-7 (2020)
High-permittivity III-V semiconductor nanocavities have shown huge potential for enhanced nonlinear light-matter interactions at the nanoscale. In particular, Second Harmonic (SH) generation in AlGaAs nanoantennas can be extremely efficient; however,
Externí odkaz:
https://doaj.org/article/c466a030a00d42ea927277342746d0a9
Autor:
Luca Fagiani, Nicoletta Granchi, Attilio Zilli, Chiara Barri, Francesco Rusconi, Michele Montanari, Erfan Mafakheri, Michele Celebrano, Mohammed Bouabdellaoui, Marco Abbarchi, Francesca Intonti, Anjam Khursheed, Paolo Biagioni, Marco Finazzi, Maria Antonietta Vincenti, Monica Bollani
Publikováno v:
Optical Materials: X, Vol 13, Iss , Pp 100116- (2022)
We propose to exploit the natural mechanical instability of thin solid films to form regular patterns of monocrystalline atomically smooth silicon and germanium nanostructures that cannot be realized with conventional methods. The solid-state dewetti
Externí odkaz:
https://doaj.org/article/e0fba9a316b54ba3aa32582c3fc909f4
Autor:
Domenico de Ceglia, Luca Carletti, Maria Antonietta Vincenti, Costantino De Angelis, Michael Scalora
Publikováno v:
Applied Sciences, Vol 9, Iss 16, p 3381 (2019)
We investigate the enhancement of second-harmonic generation in cylindrical GaAs nanowires. Although these nanostructures confine light in two dimensions, power conversion efficiencies on the order of 10 − 5 with a pump peak intensity of ~ 1 GW /
Externí odkaz:
https://doaj.org/article/906ec2535e324618aa4c93f049d123c1
Autor:
Muhammad Fayyaz Kashif, Giuseppe Valerio Bianco, Tiziana Stomeo, Maria Antonietta Vincenti, Domenico de Ceglia, Massimo De Vittorio, Michael Scalora, Giovanni Bruno, Antonella D’Orazio, Marco Grande
Publikováno v:
Applied Sciences, Vol 9, Iss 12, p 2528 (2019)
In this study, we present a two-dimensional dielectric grating which allows achieving high absorption in a monolayer graphene at visible and near-infrared frequencies. Dielectric gratings create guided-mode resonances that are exploited to effectivel
Externí odkaz:
https://doaj.org/article/a69064a2e72e4f088f72862cd1c5e2e1
Publikováno v:
Applied Sciences, Vol 8, Iss 11, p 2212 (2018)
Enhancing the second harmonic conversion efficiency at the nanoscale is a critical challenge in nonlinear optics. Here we propose the use of epsilon-near-zero materials to boost the nonlinear radiation in the far field. Here, a comparison of the seco
Externí odkaz:
https://doaj.org/article/1ab2145492bc4b899764e5f33fbfc82b
Autor:
Maria Antonietta Vincenti, Salvatore Campione, Domenico de Ceglia, Filippo Capolino, Michael Scalora
Publikováno v:
New Journal of Physics, Vol 14, Iss 10, p 103016 (2012)
We investigate enhanced harmonic generation processes in gain-assisted, near-zero permittivity metamaterials composed of spherical plasmonic nanoshells. We report the presence of narrow-band features in transmission, reflection and absorption induced
Externí odkaz:
https://doaj.org/article/3ebf810b9cf749a7a765248328ebd3e8
Autor:
Domenico de Ceglia, Marco Gandolfi, Maria Antonietta Vincenti, Andrea Tognazzi, Paolo Franceschini, Alfonso C. Cino, Gina Ambrosio, Camilla Baratto, Bohan Li, Rocio Camacho-Morales, Dragmoir N. Neshev, Costantino De Angelis
Publikováno v:
Optics Letters. 48:2961
We investigate transient, photo-thermally induced metasurface effects in a planar thin-film multilayer based on a phase-transition material. Illumination of a properly designed multilayer with two obliquely incident and phase-coherent pulsed pumps in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::777cda2c66c274fbe85ab1aada3dfa2e
https://doi.org/10.1364/ol.486733
https://doi.org/10.1364/ol.486733