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Visibility of graphene flakes on a dielectric substrate
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10.1063/1.2768625
/content/aip/journal/apl/91/6/10.1063/1.2768625
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/6/10.1063/1.2768625
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Geometrical configuration for detection of graphene on a substrate. A light beam is focused on a small spot which is scanned along the surface. The calculations presented below show how to optimize the conditions for visibility of atomically thin graphitic flakes.

Image of FIG. 2.
FIG. 2.

(Color) Visibility in (a) reflectance and (b) transmittance for graphene on a silicon wafer with a oxide layer for varying substrate thickness and frequency of radiation. Note the difference in the scales of (a) and (b). Here we take an aperture of and .

Image of FIG. 3.
FIG. 3.

(Color) Frequency dependence of visibility of graphene on (a) an infinite silicon slab with a thin oxide layer of width , and (b) a silicon carbide slab of width . In both plots we use aperture .

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/content/aip/journal/apl/91/6/10.1063/1.2768625
2007-08-10
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Visibility of graphene flakes on a dielectric substrate
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/6/10.1063/1.2768625
10.1063/1.2768625
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