Broadband dielectric terahertz metamaterials with negative permeability

Abstract

We present a design of dielectric metamaterials exhibiting a broad range of negative effective permeability in the terahertz spectral region. The investigated structures consist of an array of high-permittivity rods that exhibit a series of Mie resonances giving rise to the effective magnetic response. The spectral positions of resonances depend on the geometrical parameters of the rods and on their permittivity, which define the resonant confinement of the electromagnetic field within the rods. The electromagnetic coupling between the adjacent rods is negligible. With a suitable aspect ratio of the rods, a broadband magnetic response can be obtained.

© 2009 Optical Society of America

Fiber metamaterials with negative magnetic permeability in the terahertz

Anna Wang, Alessandro Tuniz, Peter G. Hunt, Elise M. Pogson, Roger A. Lewis, Avi Bendavid, Simon C. Fleming, Boris T. Kuhlmey, and Maryanne C. J. Large
Opt. Mater. Express 1(1) 115-120 (2011)

Bulk magnetic terahertz metamaterials based on dielectric microspheres

M. Šindler, C. Kadlec, F. Dominec, P. Kužel, C. Elissalde, A. Kassas, J. Lesseur, D. Bernard, P. Mounaix, and H. Němec
Opt. Express 24(16) 18340-18345 (2016)

Negative permeability and subwavelength focusing of quasi-periodic dendritic cell metamaterials

Xin Zhou, Quan H. Fu, Jing Zhao, Yang Yang, and Xiao P. Zhao
Opt. Express 14(16) 7188-7197 (2006)

Transition between metamaterial and photonic-crystal behavior in arrays of dielectric rods

F. Dominec, C. Kadlec, H. Němec, P. Kužel, and F. Kadlec
Opt. Express 22(25) 30492-30503 (2014)

Magnetically tunable negative permeability metamaterial composed by split ring resonators and ferrite rods

Lei Kang, Qian Zhao, Hongjie Zhao, and Ji Zhou
Opt. Express 16(12) 8825-8834 (2008)