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Experimentally demonstrated filters based on guided resonance of photonic-crystal films
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View: Figures


Image of FIG. 1.
FIG. 1.

Guided resonance filter (GRF) fabricated on a high index material with relative permittivity of 20. The lattice constant, is the air-hole radius.

Image of FIG. 2.
FIG. 2.

MMW imaging system that based on a Agilent 85106D network analyzer: (a) the measuring setup, the wave is emitted by a horn antenna into the GRF. A monopole detector is positioned right behind the filter to collected the transmitted wave; (b) the Agilent network analyzer

Image of FIG. 3.
FIG. 3.

3D–FDTD calculation (top) of plane wave incident into a PhC slab with the relative permittivity , lattice constant , slab thickness of and experimental measured transmission spectrum (bottom) of the GRF.

Image of FIG. 4.
FIG. 4.

(a) Schematic image of the PhC slab, where the circles indicated cavities that are separated by the air-holes, and transmission spectrum through a single PhC slab with air hole radius and slab thickness , calculated by 3D-FDTD methods; (b) schematic image of a lattice of circular cavities and transmission spectrum of these cavities with the radius and height of the cavity , respectively. Both PhC slab and the lattice of cavities are fabricated in high K20 with permittivity of 20.

Image of FIG. 5.
FIG. 5.

Three-dimensional FDTD simulation of the transmission spectrum of a uniform slab (dotted line) and a thickness PhC slab with permittivity of 20, and air-hole radius (solid line), and (dashed line), respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimentally demonstrated filters based on guided resonance of photonic-crystal films