Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Basharin, Alexey A."'
Autor:
Kovalev, Fedor V., Miroshnichenko, Andrey E., Basharin, Alexey A., Toepfer, Hannes, Shadrivov, Ilya V.
The remarkable properties of toroidal metasurfaces, featuring ultrahigh-Q bound states in the continuum (BIC) resonances and nonradiating anapole modes, have garnered significant attention. The active manipulation of quasi-BIC resonance characteristi
Externí odkaz:
http://arxiv.org/abs/2403.06345
Autor:
Labate, Giuseppe, Ospanova, Anar K., Nemkov, Nikita A., Basharin, Alexey A., Matekovits, Ladislau
In this work, we discuss theoretical findings on the common feature describing nonradiating sources, based on equivalent sources from which it is possible to derive cloaking devices and anapole mode conditions. Starting from the differential form of
Externí odkaz:
http://arxiv.org/abs/1806.04134
Publikováno v:
Phys. Rev. A 98, 023858 (2018)
The complete dynamic multipole expansion of electromagnetic sources contains more types of multipole terms than it is conventionally perceived. The toroidal multipoles are one of the examples of such contributions that have been widely studied in rec
Externí odkaz:
http://arxiv.org/abs/1804.07342
In this paper, we concern on nonradiating properties of novel silicon metamaterials due to multipolar interaction. Destructive interference of electric dipole moment and the next term of multipolar decomposition - toroidal dipole moment, leads to non
Externí odkaz:
http://arxiv.org/abs/1801.09677
Here, we propose novel transparency effect in cylindrical all-dielectric metamaterials. We show that cancellation of multipole moments of the same kind lead to almost zero radiation losses due to the counter-directed multipolar moments in metamolecul
Externí odkaz:
http://arxiv.org/abs/1709.01798
We propose a model of tunable THz metamaterials. The main advantage is the blueshift of resonance and phase tunability due to toroidal excitation in planar metallic metamolecules with incorporated silicon inductive inclusions.
Externí odkaz:
http://arxiv.org/abs/1702.08233
Autor:
Basharin, Alexey A., Chuguevsky, Vitaly, Volsky, Nikita, Kafesaki, Maria, Economou, Eleftherios N.
Publikováno v:
Phys. Rev. B 95, 035104 (2017)
We demonstrate that ideal anapole metamaterials have infinite Q-factor. We have designed and fabricated a metamaterial consisting of planar metamolecules which exhibit anapole behavior in the sense that the electric dipole radiation is almost cancell
Externí odkaz:
http://arxiv.org/abs/1608.03233
Autor:
Basharin, Alexey A., Chuguevskiy, Vitaliy, Volsky, Nikita, Kafesaki, Maria, Economou, Eleftherios N., Ustinov, Alexey V.
We demonstrate that, owing to the unique topology of the toroidal dipolar mode, its electric/magnetic field can be spatially confined within subwavelength, externally accessible regions of the metamolecules, which makes the toroidal planar metamateri
Externí odkaz:
http://arxiv.org/abs/1605.08779
Publikováno v:
Phys. Rev. B 95, 165134 (2017)
We show that for a particular choice of gauge the vector potential of any non-radiating source is spatially localized along with its electric and magnetic fields. Important on its own, this special property of non-radiating sources dramatically simpl
Externí odkaz:
http://arxiv.org/abs/1605.09033
Autor:
Basharin, Alexey A., Kafesaki, Maria, Economou, Eleftherios N., Soukoulis, Costas M., Fedotov, Vassili A., Savinov, Vassili, Zheludev, Nikolay I.
Toroidal multipoles are the terms missing in the standard multipole expansion; they are usually overlooked due to their relatively weak coupling to the electromagnetic fields. Here we propose and theoretically study all-dielectric metamaterials of a
Externí odkaz:
http://arxiv.org/abs/1407.0541