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Polarization dependent transmission through asymmetric C-shaped holes
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10.1063/1.3088851
/content/aip/journal/apl/94/8/10.1063/1.3088851
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/8/10.1063/1.3088851
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic representation of the periodic arrays of asymmetric c-shaped holes. The incident terahertz wave is normal for a sample with thickness and period . (b) Geometric parameter definition. The width is . The outer diameter and the entire length of the c-shaped holes correspond to the diameter of circle holes of and the length of rectangular holes of , respectively.

Image of FIG. 2.
FIG. 2.

Polarization dependent transmission amplitude spectra of the periodic arrays of c-shaped holes. Two resonance frequencies of 0.30 and 0.70 THz appear at 0° polarization, whereas only a single resonance frequency of 0.65 THz appears at 90° polarization.

Image of FIG. 3.
FIG. 3.

Measured transmission amplitude spectra of the periodic arrays of (a) c-shaped holes at 0° (blue curve) and 90° (red curve) polarizations, (c) rectangular (blue curve) and circle (red curve) holes at normal incidence (b). (d) Simulated transmission amplitude spectra corresponding to the hole structure presented in (a) and (c), respectively.

Image of FIG. 4.
FIG. 4.

(a) Schematic view of the sample structure. [(b)–(d)] By using the FDTD method, normalized electric near-field amplitudes are calculated at the frequencies of 0.7 THz at 90° polarization, 0.3 and 0.7 THz at 0° polarization, respectively. White arrows indicate the incident polarization direction.

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/content/aip/journal/apl/94/8/10.1063/1.3088851
2009-02-23
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Polarization dependent transmission through asymmetric C-shaped holes
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/8/10.1063/1.3088851
10.1063/1.3088851
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