Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Rebeca Tudor"'
Autor:
Rebeca Tudor, George Andrei Bulzan, Mihai Kusko, Cristian Kusko, Viorel Avramescu, Dan Vasilache, Raluca Gavrila
Publikováno v:
Nanomaterials, Vol 13, Iss 3, p 579 (2023)
This paper presents an efficient method to generate high-order Bessel–Gauss beams carrying orbital angular momentum (OAM) by using a thin and compact optical element such as a multilevel spiral axicon. This approach represents an excellent alternat
Externí odkaz:
https://doaj.org/article/9d5b14e49fe14a1f9d4477b7290e5799
Autor:
Alessio D’Errico, Raouf Barboza, Rebeca Tudor, Alexandre Dauphin, Pietro Massignan, Lorenzo Marrucci, Filippo Cardano
Publikováno v:
APL Photonics, Vol 6, Iss 2, Pp 020802-020802-9 (2021)
Quantum walks are processes that model dynamics in coherent systems. Their experimental implementations proved to be key to unveiling novel phenomena in Floquet topological insulators. Here, we realize a photonic quantum walk in the presence of a syn
Externí odkaz:
https://doaj.org/article/c51b36670ccd4116b3924dfd8c16892d
Autor:
Lorenzo Marrucci, Filippo Cardano, Alexandre Dauphin, Alessio D'Errico, Raouf Barboza, Pietro Massignan, Rebeca Tudor
Publikováno v:
APL Photonics
APL Photonics, Vol 6, Iss 2, Pp 020802-020802-9 (2021)
APL Photonics, Vol 6, Iss 2, Pp 020802-020802-9 (2021)
Quantum walks are processes that model dynamics in coherent systems. Their experimental implementations proved to be key to unveiling novel phenomena in Floquet topological insulators. Here, we realize a photonic quantum walk in the presence of a syn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3cc535f3b62b3e042fb7ade32cb3fc1
http://hdl.handle.net/11588/841962
http://hdl.handle.net/11588/841962
Autor:
Andrei Avram, D. Ursu, Rebeca Tudor, Mihaela Kusko, R. Rebigan, G. Sorohan, Cristian Kusko, Dan Vasilache
Publikováno v:
2020 International Semiconductor Conference (CAS).
We present the technological processes required to fabricate silicon Fresnel lenses for long infrared spectral range. The Fresnel lenses operate as image corrector in standard long infrared imaging systems and its optical surface consists of sixteen
Autor:
Rebeca Tudor, Daniela Dragoman
Publikováno v:
Journal of Modern Optics. 64:2328-2335
We show that the skewness and kurtosis parameters of optical fields with quantized orbital angular momenta (OAM) and integer topological charge, which depend on the propagation distance only through normalized transverse coordinates, remain invariant
Publikováno v:
EPJ Web of Conferences, Vol 215, p 02003 (2019)
We present the fabrication of a beam shaper with 32 levels for the generation of nondiffractive optical fields representing quasi-Bessel beams of order zero. This optical element is designed for visible light (λ=633 nm) and fabricated using standard
Publikováno v:
Optics Communications. 368:141-149
We present a method for spatially separated detection of multiple orbital angular momentum (OAM) states, simultaneous. The starting point is the generation of axially superposed Laguerre–Gauss beams, carrying multiple OAM states using a single comp
Publikováno v:
2016 International Semiconductor Conference (CAS).
We present a free space optical communicator prototype working with independent optical vortex beams. The information is encoded by these helical beams which carry different orbital angular momentum (OAM) being superposed in one single channel of com
Publikováno v:
ESSDERC
Colloidal quantum dots (QDs) have been considered in the last years as a promising material for photodetectors due to size-tunable optical absorption spectra through quantum size effect. Another important advantage is solution processability that fac
Publikováno v:
2015 Advances in Wireless and Optical Communications (RTUWO).
We propose an experimental model of free space optical communicator in which the information is carried by different orbital angular momentum values. In this sense independent helical beams are superposed in the same channel of communication in order