Tunable three-dimensional photonic crystals using semiconductors with varying free-carrier densities

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We show from theoretical calculations that three-dimensional photonic crystals constructed with close-packed air spheres in a semiconductor matrix can exhibit a complete photonic band gap (CPBG) in the near-infrared range. The CPBG is easily tunable by using the free-carrier density dependence of plasma frequencies of semiconductors. The frequency of the defect mode created by inserting a slab of semiconductor into inverted opals is also found to be tunable by changing the density of free carriers of the semiconductor.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
2002-08
Language
English
Article Type
Article
Keywords

BAND-GAP STRUCTURE; LIQUID-CRYSTALS; SYSTEMS; MODES; OPAL; LOCALIZATION; SILICON; GAAS; RODS

Citation

PHYSICAL REVIEW B, v.66, no.7

ISSN
1098-0121
DOI
10.1103/PhysRevB.66.075109
URI
http://hdl.handle.net/10203/79777
Appears in Collection
PH-Journal Papers(저널논문)
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