Тип публикации: статья из журнала

Год издания: 2017

Аннотация: We consider bound states in the radiation continuum (BSC) above the light cone in an one-dimensional periodic array of dielectric spheres in air. The BSCs are classified by orbital angular momentum m, Bloch wave vector β directed along the array, and polarization. The most simple symmetry protected BSCs have m = 0, β = 0 and occur iПоказать полностьюn a wide range of the radius of spheres and dielectric constant. More sophisticated BSCs with m ≠ 0, β = 0 only for a selected radius of the spheres at a fixed dielectric constant. We also show the existence of robust Bloch BSCs with β ≠ 0, m = 0. The BSCs with m = 0 can be easily detected by the collapse of Fano resonance in scattering of a plane wave. In response to a plane wave with circular polarization the BSCs with m ≠ 0 give rise to Poynting vector spiralling around the array. © 2017, Advanced Electromagnetics. All rights reserved.

Журнал: Advanced Electromagnetics

Выпуск журнала: Vol. 6, Is. 1

Номера страниц: 1-10

ISSN журнала: 21190275

Издатель: Advanced Electromagnetics

• Bulgakov E. (KirenskyInstitute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation, Siberian State Aerospace University, Krasnoyarsk, Russian Federation)
• Sadreev A. (KirenskyInstitute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation)

• Scopus