Temporal coupled mode theory for all-dielectric perfect absorbers

Xianshun Ming; Willie J. Padilla; Liqun Sun; Huaidong Yang

doi:10.1117/12.2288506

12 January 2018 Temporal coupled mode theory for all-dielectric perfect absorbers

Xianshun Ming, Willie J. Padilla, Liqun Sun, Huaidong Yang

Proceedings Volume 10622, 2017 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices; 1062205 (2018) https://doi.org/10.1117/12.2288506
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

Mechanism of the two-port one input mirror-symmetric all-dielectric disk array perfect absorbers is studied by temporal coupled mode theory. The perfect absorption is resulted from the degenerate critical coupling of EH¹¹¹ and HE₁₁₁ modes of the dielectric disks. Analytical absorption with parameters extracted from Eigen-frequency analysis matches well with that by Scattering parameter simulations, we also show that the asymmetric total field is due to the different symmetry of the two modes. The effect of the geometric parameters and material loss tangent is also investigated, which can guide the design of such all-dielectric perfect absorbers.

Citation Download Citation

Xianshun Ming, Willie J. Padilla, Liqun Sun, and Huaidong Yang "Temporal coupled mode theory for all-dielectric perfect absorbers", Proc. SPIE 10622, 2017 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices, 1062205 (12 January 2018); https://doi.org/10.1117/12.2288506

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