All-dielectric Metamaterial for Electromagnetically-induced Transparency in Optical Region

Authors

  • Pham The Linh Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
  • Nguyen Thi Viet Ninh Faculty of Physics and Technology, Thai Nguyen University of Science, Thai Nguyen, Vietnam
  • Nguyen Dinh Quang Department of Physics, University of Science, Vietnam National University, Hanoi, Vietnam
  • Tran Tien Lam Faculty of Physics, Thai Nguyen University of Education, 20 Luong Ngoc Quyen, Thai Nguyen, Vietnam
  • Nguyen Van Ngoc Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
  • Bui Xuan Khuyen Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
  • Nguyen Thi Hien Faculty of Physics and Technology, Thai Nguyen University of Science, Thai Nguyen, Vietnam
  • Vu Dinh Lam Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
  • Bui Son Tung Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/0868-3166/30/2/14843

Keywords:

all-dielectric metamaterial, electromagnetically-induced transparency, optical region

Abstract

Metamaterial (MM) is emerging as a promising approach to manipulate electromagnetic waves, spanning from radio frequency to the optical region. In this paper, we employ an effect called electromagnetically-induced transparency (EIT) in all-dielectric MM structures to create a narrow transparent window in opaque broadband of the optical region (580-670 nm). Using dielectric materials instead of metals can mitigate the large non-radiative ohmic loss on the metal surface. The unit-cell of MM consists of Silicon (Si) bars on Silicon dioxide (SiO\(_{2}\)) substrate, in which two bars are directed horizontally and one bar is directed vertically. By changing the relative position and dimension of the Si bars, the EIT effect could be achieved. The optical properties of the proposed MM are investigated numerically using the finite difference method with commercial software Computer Simulation Technology (CST). Then, characteristic parameters of MM exhibiting EIT effect (EIT-MM), including Q-factor, group delay, are calculated to evaluate the applicability of EIT-MM to sensing and light confinement.

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Published

26-05-2020

How to Cite

Linh, P. T., Ninh, N. T. V., Quang, N. D., Lam, T. T., Ngoc, N. V., Khuyen, B. X., Hien, N. T., Lam, V. D., & Tung, B. S. (2020). All-dielectric Metamaterial for Electromagnetically-induced Transparency in Optical Region. Communications in Physics, 30(2), 189. https://doi.org/10.15625/0868-3166/30/2/14843

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Papers

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