Artificial isotropic magnetism and negative refraction of metamaterial consisting of dielectric spherical shells

Liu, Ling Yun; Yang, Dong Ping; Zhou, Yuanming; Zhou, Ji

doi:10.1007/s00339-014-8715-6

Cited by 3 publications

(2 citation statements)

References 24 publications

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“…However, the paper of Lewin [16] from 1947 is nowadays much better known. Since then, many others have followed this approach [17][18][19][20][21][22][23][24][25][26]. Using only isotropic dielectric spheres, the DNG condition is very difficult to achieve.…”

Section: Introductionmentioning

confidence: 99%

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Tailoring Effective Media by Mie Resonances of Radially-Anisotropic Cylinders

2015

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This paper studies constructing advanced effective materials using arrays of circular radially-anisotropic (RA) cylinders. Homogenization of such cylinders is considered in an electrodynamic case based on Mie scattering theory. The homogenization procedure consists of two steps. First, we present an effectively isotropic model for individual cylinders, and second, we discuss the modeling of a lattice of RA cylinders. Radial anisotropy brings us extra parameters, which makes it possible to adjust the desired effective response for a fixed frequency. The analysis still remains simple enough, enabling a derivation of analytical design equations. The considered applications include generating artificial magnetism using all-dielectric cylinders, which is currently a very sought-after phenomenon in optical frequencies. We also study how negative refraction is achieved using magnetodielectric RA cylinders.

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Section: Introductionmentioning

confidence: 99%

“…Using only isotropic dielectric spheres, the DNG condition is very difficult to achieve. Therefore, different authors have considered, e.g., magnetodielectric spheres [19], spheres of two different sizes [22,23] and layered structures [21,25,26].…”

Section: Introductionmentioning

confidence: 99%

Tailoring Effective Media by Mie Resonances of Radially-Anisotropic Cylinders

2015

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Artificial negative refraction index material consisting of dielectric perpendicular rings

Zhang

Yang

et al. 2016

2016 11th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

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Tunable metamaterial-based silicon waveguide

Han

Lin

2020

Opt. Lett.

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A tunable metamaterial (MM)-based silicon (Si) waveguide is presented that is composed of an MM nanodisk array on a Si-on insulator substrate. A significant modulation efficiency of transmission intensity could be realized by elevating individually or simultaneously the column number of MM nanodisks. For a convenient description, an MM-based Si waveguide with one, two, three, four, and five columns of MM nanodisks are denoted as MM-1, MM-2, MM-3, MM-4, and MM-5, respectively. Transmission intensity of MM-based Si waveguides could be switched between on and off states by driving different columns of MM nanodisks on the Si waveguide surface. Transmission intensities could be attenuated from 100% to 56%, 24%, 6%, 1%, and 0% for MM-1, MM-2, MM-3, MM-4, and MM-5, respectively, at the wavelength of 1.525 µm. Furthermore, the MM-5 device is exposed to an ambient environment with different refraction indices. It exhibits a linear relationship of resonance dips and refraction indexes. The proposed design of the MM-based Si waveguide provides potential possibilities in an optical switch, variable optical attenuator, and sensor applications.

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Artificial isotropic magnetism and negative refraction of metamaterial consisting of dielectric spherical shells

Cited by 3 publications

References 24 publications

Tailoring Effective Media by Mie Resonances of Radially-Anisotropic Cylinders

Tailoring Effective Media by Mie Resonances of Radially-Anisotropic Cylinders

Artificial negative refraction index material consisting of dielectric perpendicular rings

Tunable metamaterial-based silicon waveguide

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