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pro vyhledávání: '"Cagliero, Andrea"'
Autor:
Cagliero, Andrea, Rahmouni, Lyes
The quantum behavior of charge carriers in semiconductor structures is often described in terms of the effective mass Schr\"{o}dinger equation, neglecting the rapid fluctuations of the wave function on the scale of the atomic lattice. For systems wit
Externí odkaz:
http://arxiv.org/abs/1909.06596
Autor:
Cagliero, Andrea
Approximate solutions to elliptic partial differential equations with known kernel can be obtained via the boundary element method (BEM) by discretizing the corresponding boundary integral operators and solving the resulting linear system of algebrai
Externí odkaz:
http://arxiv.org/abs/1909.06565
Autor:
Cagliero, Andrea
Publikováno v:
Journal of Physics Communications, vol. 2, no. 9, 2018
In literature, it is often said that a uniform circular array (UCA) composed of a sufficient number of radiating elements is able to generate a vortex wave with arbitrary topological charge. While providing a very simple and intuitive solution withou
Externí odkaz:
http://arxiv.org/abs/1909.06557
Autor:
Cagliero, Andrea
Publikováno v:
Journal of Optics, vol. 20, no. 8, 2018
Orbital Angular Momentum (OAM) waves were first recognized as those specific vortex solutions of the paraxial Helmholtz equation for which the orbital contribution to the total angular momentum of the beam yields an integer multiple of $\hbar$ along
Externí odkaz:
http://arxiv.org/abs/1907.08797
Publikováno v:
IEEE Access, vol. 6, pp. 19814-19822, 2018
Several recent contributions have envisioned the possibility of increasing currently exploitable maximum channel capacity of a free space link, both at optical and radio frequencies, by using vortex waves, i.e. carrying Orbital Angular Momentum (OAM)
Externí odkaz:
http://arxiv.org/abs/1901.05857
Autor:
Cagliero, Andrea, Gaffoglio, Rossella
Publikováno v:
IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 900-903, 2017
As reported in several recent publications, a spatial multiplexing involving the transmission of orthogonal waves carrying Orbital Angular Momentum (OAM) is unable to provide spectral efficiency improvements with respect to the conventional technique
Externí odkaz:
http://arxiv.org/abs/1606.06976
Publikováno v:
Radio Science, vol. 51, pp. 645-658, 2016
In this work we present the outcomes of a radio-frequency OAM transmission between two antenna arrays performed in a real-world context. The analysis is supplemented by deep simulative investigations able to provide both a preliminary overview of the
Externí odkaz:
http://arxiv.org/abs/1511.02341
Publikováno v:
IEEE Antennas and Wireless Propagation Letters, vol. 15, pp. 568-571, 2016
Following on from the increasing interest for electromagnetic waves carrying Orbital Angular Momentum (OAM), different configurations of antenna systems able to generate such beams have been proposed. However, in our opinion, a traditional radiation
Externí odkaz:
http://arxiv.org/abs/1503.05780
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