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Coupling between surface plasmons and nonresonant transmission in subwavelength holes at terahertz frequencies
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10.1063/1.2771093
/content/aip/journal/apl/91/7/10.1063/1.2771093
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/7/10.1063/1.2771093
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Measured transmitted terahertz pulses through the reference and the hole array. Inset: a scanning electron microscopy image of the array. (b) Measured (open circles) and the Fano fit (solid curve) of transmittance. The fitting parameters are , , , and for the mode. Inset: corresponding data of phase change.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Measured absolute transmittance of the hole arrays with fixed hole length of and various hole widths. For clarity, the curves are vertically displaced by 0.36. (b) Absolute (squares) and normalized (circles) peak transmittance as a function of hole width. The solid lines are guides for the eye.

Image of FIG. 3.
FIG. 3.

(Color online) Angle-dependent amplitude transmission for arrays with hole dimensions of (a) and (b) . The open circles represent the peak frequencies of the Al–Si SP modes and nonresonant transmission.

Image of FIG. 4.
FIG. 4.

Calculated coupling coefficient of the Al–Si SP modes with non-resonant transmission for different hole widths at normal incidence. The dotted line is a guide for the eye.

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/content/aip/journal/apl/91/7/10.1063/1.2771093
2007-08-17
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Coupling between surface plasmons and nonresonant transmission in subwavelength holes at terahertz frequencies
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/7/10.1063/1.2771093
10.1063/1.2771093
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