Zobrazeno 1 - 10
of 72
pro vyhledávání: '"P A, KUPRIIANOV"'
The concepts of topology have a profound impact on physics research spanning the fields of condensed matter, photonics and acoustics and predicting topological states that provide unprecedented versatility in routing and control of waves of various n
Externí odkaz:
http://arxiv.org/abs/2207.11348
Autor:
Valero, Adrià Canós, Shamkhi, Hadi. K, Kupriianov, Anton S., Tuz, Vladimir R., Pavlov, Alexander A., Redka, Dmitrii, Bobrovs, Vjaceslavs, Kivshar, Yuri S., Shalin, Alexander S.
We uncover a novel mechanism for superscattering of subwavelength resonators closely associated with the physics of bound states in the continuum. We demonstrate that superscattering occurs as a consequence of constructive interference driven by the
Externí odkaz:
http://arxiv.org/abs/2105.13119
Autor:
Dmitriev, Victor, Santos, Silvio Domingos Silva, Evlyukhin, Andrey B., Kupriianov, Anton S., Tuz, Vladimir R.
Publikováno v:
Phys. Rev. B 103, 165402 (2021)
Herein, we investigate the symmetry-protected toroidal dipole resonances and conditions of their excitation in a new type of electromagnetic metamaterials. These metamaterials are all-dielectric planar periodic arrays of dielectric disks disposed on
Externí odkaz:
http://arxiv.org/abs/2101.08714
Autor:
Adrià Canós Valero, Hadi K. Shamkhi, Anton S. Kupriianov, Thomas Weiss, Alexander A. Pavlov, Dmitrii Redka, Vjaceslavs Bobrovs, Yuri Kivshar, Alexander S. Shalin
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-13 (2023)
Abstract We study the Mie-like scattering from an open subwavelength resonator made of a high-index dielectric material, when its parameters are tuned to the regime of interfering resonances. We uncover a novel mechanism of superscattering, closely l
Externí odkaz:
https://doaj.org/article/dee7afcf0c884ba4b02af0d43a3db931
Publikováno v:
Journal of Physics D: Applied Physics, Vol. 54, No. 11, 115107 (2021)
Herein, we discuss the conditions for excitation of symmetry-protected toroidal dipole modes in all-dielectric metasurfaces composed of trimer or twin-trimer clusters of dielectric disks. Such metasurfaces permit enhanced light-matter interaction due
Externí odkaz:
http://arxiv.org/abs/2009.12944
Autor:
Shamkhi, Hadi K., Sayanskiy, Andrey, Valero, Adria Canos, Kupriianov, Anton S., Kapitanova, Polina, Kivshar, Yuri S., Shalin, Alexander S., Tuz, Vladimir R.
Publikováno v:
Phys. Rev. Materials 3, 085201 (2019)
Dielectric metasurfaces perform unique photonics effects and serve as the engine of nowadays light-matter technologies. Here, we suggest theoretically and demonstrate experimentally the realization of a high transparency effect in a novel type of all
Externí odkaz:
http://arxiv.org/abs/1905.10538
Publikováno v:
Journal of Applied Physics, 125, 143101 (2019)
An all-dielectric metasurface featuring resonant conditions of the trapped mode excitation is considered. It is composed of a lattice of subwavelength particles which are made of a high-refractive-index dielectric material structured in the form of d
Externí odkaz:
http://arxiv.org/abs/1812.10817
Autor:
Sayanskiy, Andrey, Kupriianov, Anton S., Xu, Su, Kapitanova, Polina, Dmitriev, Victor, Khardikov, Vyacheslav V., Tuz, Vladimir R.
Publikováno v:
Phys. Rev. B 99, 085306 (2019)
We reveal peculiarities of the trapped (dark) mode excitation in a polarization-insensitive all-dielectric metasurface, whose unit super-cell is constructed by particularly arranging four cylindrical dielectric particles. Involving group-theoretical
Externí odkaz:
http://arxiv.org/abs/1811.11396
The plasmon resonance in the cadmium selenide semiconductor nanocrystals with different doping types
Autor:
Ipatov Andrei, Kupriianov Genrikh
Publikováno v:
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 16, Iss 2 (2023)
The effect of the type of doping (surface (I) or bulk (II) doping) on the character of the dipole plasmon mode in semiconductor CdSe nanocrystals has been studied. It was found that in case I (donors located on the surface of the nanocrystal) the col
Externí odkaz:
https://doaj.org/article/661117e5f5884da788f3f0b98b31f726
Autor:
Tuz, Vladimir R., Khardikov, Vyacheslav V., Kupriianov, Anton S., Domina, Kateryna L., Xu, Su, Wang, Hai, Sun, Hong-Bo
Publikováno v:
Optics Express, Vol. 26, No. 3, 2905-2916 (2018)
A planar all-dielectric metamaterial made of a double-periodic lattice whose unit cell consists of a single subwavelength dielectric particle having the form of a disk possessing a penetrating hole is considered. The resonant states in the transmitte
Externí odkaz:
http://arxiv.org/abs/1710.03685