The Microwave Properties of YBCO Photonic Crystal Structure Microstrip

Huang, Huaxiong; Mao, Jinrong; Hu, Zheng-Da; Liu, J.-Y.; Zhen, Dong; Yao, Xin

doi:10.1023/b:jolt.0000035373.96684.29

Cited by 1 publication

(1 citation statement)

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“…as constituents of one-or two-dimensional composites [9][10][11][12][13][14][15][16][17][18][19][20], (a) emphasizing the possibility of tuning the gaps between photonic bands [12,13], and hence calibrating transmittances [14,15], by virtue of superconducting elements, (b) examining the concept of an Abrikosov vortex lattice to act as a two-dimensional photonic crystal maintained through an external magnetic field [16], or (c) employing these artificial structures as metamaterials for observing effects of negative refraction at finite radiation frequencies [17,18]. Further applications derive from the use of superconductor thin films for constructing bandstop filters [21,22] and from the realization of lattices of superconductor cubes or plates for obtaining metamaterials at zero frequency [23].…”

Section: Introductionmentioning

confidence: 99%

The effect of a superconducting surface layer on the optical properties of a dielectric photonic composite

Rauh¹,

Genenko²

2008

J. Phys.: Condens. Matter

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The effect of a strongly anisotropic superconducting surface layer on the transmittance, reflectance and absorptance of a one-dimensional, layered dielectric composite with periodically alternating, isotropic constituents for linearly polarized, normally incident electromagnetic radiation is studied both analytically and numerically. The underlying model of the electric permittivity of the superconducting constituent permits photonic excitation at frequencies both below and above the superconductor pair breaking frequency as well as thermal and normal scattering right up to the superconductor critical temperature. The optical properties addressed reveal traits such as band-like patterns of the transmittance and reflectance, but also step-like or smeared-out patterns of the reflectance and absorptance, displaying a marked reference to the particular type of polarization by virtue of the anisotropy of the superconducting layer covering the dielectric composite. Thus, in switching from transverse electric to transverse magnetic polarization, the maximum optical selectivity can become gigantic, given an appropriate thickness of the superconducting layer, with a moderate dependence on temperature. This fact offers unique possibilities regarding practical applications of such a novel photonic composite as an efficient polarization filter for electromagnetic radiation tunable via the thickness of the covering layer and temperature.

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