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  • Using finite-difference time-domain simulations, we study the interactions of electromagnetic radiation with a square array of dielectric rods parallel to the electric vector. We observe the electric and magnetic Mie resonances which induce intervals of negative effective permittivity and permeability and which contribute to the formation of the photonic band gaps. Owing to the interplay of these phenomena, a narrow spectral range with a negative refractive index can occur. However, this requires the filling fraction of the dielectric to fall into a well defined interval of values and its permittivity to exceed a minimum of about 50. We discuss these phenomena from the perspective of both photonic crystal and metamaterial concepts.
  • Using finite-difference time-domain simulations, we study the interactions of electromagnetic radiation with a square array of dielectric rods parallel to the electric vector. We observe the electric and magnetic Mie resonances which induce intervals of negative effective permittivity and permeability and which contribute to the formation of the photonic band gaps. Owing to the interplay of these phenomena, a narrow spectral range with a negative refractive index can occur. However, this requires the filling fraction of the dielectric to fall into a well defined interval of values and its permittivity to exceed a minimum of about 50. We discuss these phenomena from the perspective of both photonic crystal and metamaterial concepts. (en)
Title
  • Transition between metamaterial and photonic-crystal behavior in arrays of dielectric rods
  • Transition between metamaterial and photonic-crystal behavior in arrays of dielectric rods (en)
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  • Transition between metamaterial and photonic-crystal behavior in arrays of dielectric rods
  • Transition between metamaterial and photonic-crystal behavior in arrays of dielectric rods (en)
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  • RIV/68378271:_____/14:00439414!RIV15-GA0-68378271
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  • I, P(GA14-25639S)
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  • 25
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  • 51038
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  • RIV/68378271:_____/14:00439414
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  • metamaterials; photonic crystals; negative refractive index; dielectrics (en)
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  • US - Spojené státy americké
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  • [3F16EC4C9583]
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  • Optics Express
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  • 22
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  • Kužel, Petr
  • Němec, Hynek
  • Kadlec, Christelle
  • Kadlec, Filip
  • Dominec, Filip
http://linked.open...ain/vavai/riv/wos
  • 000346368800039
issn
  • 1094-4087
number of pages
http://bibframe.org/vocab/doi
  • 10.1364/OE.22.030492
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