Zobrazeno 1 - 10
of 511
pro vyhledávání: '"De Angelis Costantino"'
Autor:
Carletti Luca, Rocco Davide, Vincenti Maria Antonietta, de Ceglia Domenico, De Angelis Costantino
Publikováno v:
Nanophotonics, Vol 13, Iss 18, Pp 3321-3326 (2024)
We demonstrate that AlGaAs thin films and metasurfaces generate a distinct intrinsic nonlinear geometric phase in their second harmonic signals, differing significantly from previous studies on nonlinear dielectric, plasmonic, or hybrid metasurfaces.
Externí odkaz:
https://doaj.org/article/0d00c4c165de4fefa36f57f06b101ebf
Autor:
Haines Jack, Vitali Valerio, Bottrill Kyle, Naik Pooja Uday, Gandolfi Marco, De Angelis Costantino, Franz Yohann, Lacava Cosimo, Petropoulos Periklis, Guasoni Massimiliano
Publikováno v:
Nanophotonics, Vol 13, Iss 3, Pp 339-348 (2024)
Compact power splitters are essential components in integrated optics. While 1 × 2 power splitters with uniform splitting are widely used, a 1 × N splitter with arbitrary number N of ports and arbitrary splitting ratio is yet to be demonstrated. In
Externí odkaz:
https://doaj.org/article/deb3acb29f024c588efb347693c54a2e
Enhancing second harmonic generation by Q-boosting lossless cavities beyond the time bandwidth limit
Autor:
Franceschini Paolo, Tognazzi Andrea, Chernyak Anna M., Musorin Alexander I., Cino Alfonso C., Fedyanin Andrey A., De Angelis Costantino
Publikováno v:
Nanophotonics, Vol 13, Iss 1, Pp 1-8 (2024)
Nanostructures proved to be versatile platforms to control the electromagnetic field at subwavelength scale. Indeed, high-quality-factors nanocavities have been used to boost and control nonlinear frequency generation by increasing the light–matter
Externí odkaz:
https://doaj.org/article/415192e50afa4fc08e7c97f89fbf095c
Autor:
Carletti Luca, Gandolfi Marco, Rocco Davide, Tognazzi Andrea, de Ceglia Domenico, Vincenti Maria Antonietta, De Angelis Costantino
Publikováno v:
Nanophotonics, Vol 10, Iss 17, Pp 4209-4221 (2021)
Optically resonant dielectric and semiconductor metasurfaces are an emerging and promising area of nanophotonics and light–matter interaction at the nanoscale. Recently, active tuning of the linear response and nonlinear effects of these components
Externí odkaz:
https://doaj.org/article/209d8c08e952476aa16c3c8e0a2f1d57
Autor:
Cotrufo, Michele, de Ceglia, Domenico, Jung, Hyunseung, Brener, Igal, Neshev, Dragomir, De Angelis, Costantino, Alù, Andrea
Digital signal processing is the cornerstone of several modern-day technologies, yet in multiple applications it faces critical bottlenecks related to memory and speed constraints. Thanks to recent advances in metasurface design and fabrication, ligh
Externí odkaz:
http://arxiv.org/abs/2409.16448
Autor:
Marino Giuseppe, Rocco Davide, Gigli Carlo, Beaudoin Grégoire, Pantzas Konstantinos, Suffit Stéphan, Filloux Pascal, Sagnes Isabelle, Leo Giuseppe, De Angelis Costantino
Publikováno v:
Nanophotonics, Vol 10, Iss 7, Pp 1837-1843 (2021)
Metasurfaces have recently gained extensive interest because of their extraordinary optical behavior as artificial material interfaces with ultrahigh compactness. In this framework, dielectric platforms have newly become very promising for nonlinear
Externí odkaz:
https://doaj.org/article/7ba062739a7a455e9bb67e9c5ffdc7d8
Autor:
de Ceglia Domenico, Coudrat Laure, Vincenti Maria Antonietta, Scalora Michael, Tanos Rana, Claudon Julien, Gérard Jean-Michel, Degiron Aloyse, Leo Giuseppe, De Angelis Costantino
Publikováno v:
EPJ Web of Conferences, Vol 287, p 04006 (2023)
We demonstrate spin-to-orbital angular momentum transfer in the bulk of nonlinear optical materials with a crystal symmetry that couples the longitudinal component of the pump field. Our predictions are exper-imentally confirmed with a thin film of g
Externí odkaz:
https://doaj.org/article/4525eeebe73c405a9ba8e9a8f2ba6a35
Autor:
Luan Yigong, Di Francescantonio Agostino, Zilli Attilio, Rocco Davide, Vinel Vincent, Borne Adrien, Lemaître Aristide, Biagioni Paolo, Duò Lamberto, Finazzi Marco, De Angelis Costantino, Leo Giuseppe, Celebrano Michele
Publikováno v:
EPJ Web of Conferences, Vol 287, p 04029 (2023)
We address the surface vs bulk origin of the second-order optical nonlinearity in AlGaAs nanocylinders through polarization-resolved measurements. By comparing numerical simulations accounting just for bulk second-order nonlinearity with experimental
Externí odkaz:
https://doaj.org/article/2b4f5ef43eab45dbbbd2ccbd6cad7cf3
Autor:
Di Francescantonio Agostino, Zilli Attilio, Rocco Davide, Conti Fabrizio, Lemaître Aristide, Biagioni Paolo, Duò Lamberto, De Angelis Costantino, Leo Giuseppe, Finazzi Marco, Celebrano Michele
Publikováno v:
EPJ Web of Conferences, Vol 287, p 04009 (2023)
In recent years a strong drive towards the miniaturization of nonlinear optics has been motivated by the functionalities it could empower in integrated devices. Among these, the upconversion of near-infrared photons to the visible and their manipulat
Externí odkaz:
https://doaj.org/article/eeabccee1b4a4002979b0b0524bdcba7
Autor:
Peters, Luke, Rocco, Davide, Olivieri, Luana, Leon, Unai Arregui, Cecconi, Vittorio, Carletti, Luca, Gigli, Carlo, Della Valle, Giuseppe, Cutrona, Antonio, Gongora, Juan Sebastian Totero, Leo, Giuseppe, Pasquazi, Alessia, De Angelis, Costantino, Peccianti, Marco
Metasurfaces represent a new frontier in materials science paving for unprecedented methods of controlling electromagnetic waves, with a range of applications spanning from sensing to imaging and communications. For pulsed terahertz generation, metas
Externí odkaz:
http://arxiv.org/abs/2401.10381