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Extraordinary transmission in a narrow energy band for metallic gratings with converging-diverging channels
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10.1063/1.2357037
/content/aip/journal/apl/89/13/10.1063/1.2357037
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357037
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic view of the lamellar transmission metallic gratings in vacuum with grating parameters as period , aperture , and thickness .

Image of FIG. 2.
FIG. 2.

(Color online) Photonic band structure of the surface plasmons responsible for the transmission resonances of gold gratings in vacuum with slit shape as (a) straight channel and (b) CDC with . The grating parameters are fixed at , , and . Also seen in figures are energetic positions (white dashed lines) of the SPP modes.

Image of FIG. 3.
FIG. 3.

(Color online) Transmittance of the gold gratings in vacuum for CDC as a function of the wavelength and distance at the gap of throat with constant grating parameters as , , and .

Image of FIG. 4.
FIG. 4.

Transmittance of a gold grating in vacuum with channel shape as CDC and converging at incident wavelength of and with the grating parameters as , , and .

Image of FIG. 5.
FIG. 5.

Normalized electric field component at an incident wavelength of along the channel centerline of a gold grating in vacuum with (a) converging channel and (b) CDC for different gaps at the throat and grating parameters as , , and .

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/content/aip/journal/apl/89/13/10.1063/1.2357037
2006-09-28
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Extraordinary transmission in a narrow energy band for metallic gratings with converging-diverging channels
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357037
10.1063/1.2357037
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