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Experimental observation of a symmetry-protected bound state in the continuum in a chain of dielectric disks / Z. F. Sadrieva [et al.]> // Phys. Rev. A. - 2019. - Vol. 99, Is. 5. - Ст. 053804, DOI 10.1103/PhysRevA.99.053804. - Cited References:61. - The numerical simulations and experimental part of this work were supported by the Russian Science Foundation (Grant No. 17-12-01581), and the analytical calculations were supported by RFBR (Grant No. 18-32-20205) and the Ministry of Education and Science of the Russian Federation (3.1668.2017/4.6). The authors are thankful to Andrey Sayanskiy for assistance in the holder fabrication. A.A.B. and Z.F.S. acknowledge the Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS" for valuable financial support.
. - ISSN 2469-9926. - ISSN 2469-9934РУБ Optics + Physics, Atomic, Molecular & Chemical Рубрики: LIGHT RESONANCES RADIATION MOMENTUM BEHAVIOR LAYER Аннотация: The existence of bound states in the continuum (BIC) manifests a general wave phenomenon first predicted in quantum mechanics by John von Neumann and Eugene Wigner [J. von Neumann and E. Wigner, Phys. Z. 30, 465 (1929)]. Today it is being actively explored in photonics, radiophysics, acoustics, and hydrodynamics. We report an experimental observation of an electromagnetic bound state in the radiation continuum in a one-dimensional array of dielectric particles. By measurement of the transmission spectra of the ceramic disk chain at GHz frequencies, we demonstrate how a resonant state in the vicinity of the center of the Brillouin zone turns into a symmetry-protected BIC with increase in the number of the disks. We estimate a number of the disks when the radiation losses become negligible in comparison to material absorption and, therefore, the chain could be considered practically as infinite. The presented analysis is supplemented by measurements of the near fields of the symmetry-protected BIC. All measurements are in a good agreement with the results of the numerical simulation and analytical model based on a tight-binding approximation. The obtained results provide useful guidelines for practical implementations of structures with bound states in the continuum that opens up horizons for the development of optical and radio-frequency metadevices.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: ITMO Univ, Dept Nanophoton & Metamat, St Petersburg 197101, Russia. Ceram Co Ltd, Giricond Res Inst, St Petersburg 194223, Russia. RAS, SB, KSC, Kirensky Inst Phys Fed Res Ctr, Krasnoyarsk 660036, Russia. Ioffe Inst, St Petersburg 194021, Russia. Доп.точки доступа: Sadrieva, Z. F.; Belyakov, M. A.; Balezin, M. A.; Kapitanova, P. V.; Nenasheva, E. A.; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Bogdanov, A. A.; Russian Science Foundation [17-12-01581]; RFBR [18-32-20205]; Ministry of Education and Science of the Russian Federation [3.1668.2017/4.6]; Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS" } Найти похожие
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