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Roles of trichomes with silica particles on the surface of leaves in Aphananthe aspera
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Image of FIG. 1.

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FIG. 1.

(a) Leaves of Aphananthe aspera and scanning electron microscopy images of (b) the back surface of a leaf and (c) a single trichome with silica particles.

Image of FIG. 2.

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FIG. 2.

Two-dimensional schematic model of the trichome with six silica (hemispherical) particles on the leaf in the xy plane.

Image of FIG. 3.

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FIG. 3.

(a), (b) and (c) Electric-field LDOS’s at the points A, B and C, respectively. Gray line indicates the LDOS in free space (air).

Image of FIG. 4.

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FIG. 4.

(a) and (b) Distribution of absolute values of electric fields at 6.0 × 104 time steps when the z-polarized magnetic field with a monochromatic frequency ωa/2πc = 1.4 (λ vac = 14.286 μm) is excited from the left side and top of the trichome, respectively.

Image of FIG. 5.

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FIG. 5.

Spectral radiance of blackbody radiation from the sun with T = 5000 K.

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/content/aip/journal/adva/3/3/10.1063/1.4794958
2013-03-07
2014-04-20

Abstract

There exist many trichomes with silica particles on the surface of leaves in Aphananthe aspera (Muku tree). The size of the trichomes is on the order of some tens to hundreds of micrometers. Investigating the electric-field local densities of the states and distributions of electromagnetic wave propagation, we theoretically revealed that while trichomes play a role as waveguides for the far-infrared, silica particles help incident far-infrared light efficiently propagate inside the trichomes and leaves. These properties would be useful for efficiently warming plants, since absorbed far-infrared light is converted to heat.

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Scitation: Roles of trichomes with silica particles on the surface of leaves in Aphananthe aspera
http://aip.metastore.ingenta.com/content/aip/journal/adva/3/3/10.1063/1.4794958
10.1063/1.4794958
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