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Complete and robust bandgap switching in double-inverse-opal photonic crystals
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10.1063/1.2829789
/content/aip/journal/apl/92/1/10.1063/1.2829789
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/1/10.1063/1.2829789
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Illustration of an eight-unit-cell DIOPC structure along with the associated geometric definitions. Shown in red are the centred titania spheres and in blue the tin disulfide backbone material. (b) Schematic illustration of the proposed DIOPC switching mechanism.

Image of FIG. 2.
FIG. 2.

Band structure of the DIOPC, with the titania core spheres shifted along the (a) (111) and (b) (100) directions. Shown on the right hand side of the two band structures are the unit cell 3D energy density distributions, which correspond to the point of the ninth band(s). Here, red color indicates high energy density values, while pale blue color designates low energy density values. The tin disulfide background (shown in green) has refractive index . The core sphere (shown in yellow) and cylinder radii are chosen to be and , respectively. The pore radius is .

Image of FIG. 3.
FIG. 3.

Variations of the complete bandgap for two switching states: spheres shifted in the (111) (red) and the (100) (blue) direction. (a) Dependence of the bandgap size on , for . (b) Dependence of the bandgap size on , for . Parameter ranges in which a complete switching is experimentally feasible are highlighted by the gray shaded areas.

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/content/aip/journal/apl/92/1/10.1063/1.2829789
2008-01-03
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Complete and robust bandgap switching in double-inverse-opal photonic crystals
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/1/10.1063/1.2829789
10.1063/1.2829789
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