Bulk and surface electromagnetic response of metallic metamaterials to convection electrons
Bulk and surface electromagnetic response of metallic metamaterials to convection electrons
The electromagnetic response of three-dimensional metallic metamaterials with isotropic effective index of refraction to fast-moving electrons is studied by numerical simulations. The considered metamaterials can support Cerenkov radiation [P.A.Cherenkov, Dokl. Akad. Nauk SSSR 2, 451 (1934)], and their effective dielectric behavior is confirmed by the detailed angular dependence of the generated radiation cone on the kinetic energy of electrons. Moreover, in addition to the predicted bulk modes, surface electromagnetic excitation is observed in a specific type of metamaterials and its dispersion is sensitive to the thickness of the subwavelength rods.
So, Jin-Kyu
06a7afea-61c2-439d-9ac4-047ea21a909b
Jang, Kyu-Ha
77e2b550-be9a-4df3-9a1c-44d02b174dc6
Park, Gun-Sik
d85a0342-6ee9-40e0-9798-9d456927f04a
Garcia-Vidal, F.J.
ded5ae5b-a267-4e5a-affe-2959938fad80
16 August 2011
So, Jin-Kyu
06a7afea-61c2-439d-9ac4-047ea21a909b
Jang, Kyu-Ha
77e2b550-be9a-4df3-9a1c-44d02b174dc6
Park, Gun-Sik
d85a0342-6ee9-40e0-9798-9d456927f04a
Garcia-Vidal, F.J.
ded5ae5b-a267-4e5a-affe-2959938fad80
So, Jin-Kyu, Jang, Kyu-Ha, Park, Gun-Sik and Garcia-Vidal, F.J.
(2011)
Bulk and surface electromagnetic response of metallic metamaterials to convection electrons.
Applied Physics Letters, 99 (7), [71106].
(doi:10.1063/1.3625952).
Abstract
The electromagnetic response of three-dimensional metallic metamaterials with isotropic effective index of refraction to fast-moving electrons is studied by numerical simulations. The considered metamaterials can support Cerenkov radiation [P.A.Cherenkov, Dokl. Akad. Nauk SSSR 2, 451 (1934)], and their effective dielectric behavior is confirmed by the detailed angular dependence of the generated radiation cone on the kinetic energy of electrons. Moreover, in addition to the predicted bulk modes, surface electromagnetic excitation is observed in a specific type of metamaterials and its dispersion is sensitive to the thickness of the subwavelength rods.
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Accepted/In Press date: 24 July 2011
Published date: 16 August 2011
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 378486
URI: http://eprints.soton.ac.uk/id/eprint/378486
ISSN: 0003-6951
PURE UUID: 3c68a584-e798-417b-b4cb-afa21a28065a
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Date deposited: 30 Jun 2015 13:39
Last modified: 14 Mar 2024 20:23
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Author:
Jin-Kyu So
Author:
Kyu-Ha Jang
Author:
Gun-Sik Park
Author:
F.J. Garcia-Vidal
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