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Bulgakov, E. N. Bound states in the continuum with high orbital angular momentum in a dielectric rod with periodically modulated permittivity / E. N. Bulgakov, A. F. Sadreev> // Phys. Rev. A. - 2017. - Vol. 96, Is. 1. - Ст. 013841, DOI 10.1103/PhysRevA.96.013841. - Cited References:38. - We acknowledge discussions with D. N. Maksimov and A. S. Aleksandrovsky. This work was partially supported by Ministry of Education and Science of Russian Federation (State Contract No. N 3.1845.2017) and RFBR Grant No. 16-02-00314.
. - ISSN 2469-9926. - ISSN 2469-9934РУБ Optics + Physics, Atomic, Molecular & Chemical Рубрики: PHOTONIC CRYSTAL SLABS LIGHT-CONE RESONANCES SPHERES RADIATION Аннотация: We report bound states in the radiation continuum (BICs) in a single infinitely long dielectric rod with periodically stepwise modulated permittivity alternating from ε1 to ε2. For ε2 = 1 in air the rod is equivalent to a stack of dielectric disks with permittivity ε1. Because of rotational and translational symmetries the BICs are classified by orbital angular momentum m and the Bloch wave vector beta directed along the rod. For m = 0 and β = 0 the symmetry protected BICs have definite polarization and occur in a wide range of the radius of the rod and the dielectric permittivities. More involved BICs with m ≠ 0, β = 0 exist only for a selected radius of the rod at a fixed dielectric constant. The existence of robust Bloch BICs with β ≠ 0, m = 0 is demonstrated. Asymptotic limits to a homogeneous rod and to very thin disks are also considered.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia. Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia. Доп.точки доступа: Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич; Ministry of Education and Science of Russian Federation [N 3.1845.2017]; RFBR [16-02-00314] } Найти похожие
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