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A photonic-crystal nanocavity is induced by a III/V nanowire in a line defect in a Si photonic crystal with several serially-connected lattice constants. The resonant wavelength changes by moving the nanowire along the line defect.
We have investigated pure germanium two-dimensional photonic crystals. The photonic crystals which exhibit resonances in the near infrared spectral range were fabricated on germanium-on-insulator substrates using standard silicon-based processing. The germanium-on-insulator substrate consists of a thin layer of pure germanium-on-oxide deposited on a silicon substrate. The optical properties are probed...
We present recent progress in converting polymer templates into three-dimensional silicon photonic crystals by using a silicon-double-inversion procedure. This has led to woodpiles with both improved structural and optical quality.
We present design and fabrication of two-dimensional photonic crystal cavities made in nanoporous silicon luminescent at 700-800 nm. Enhancement in photoluminescence extraction efficiency at the resonant wavelength is expected due to Purcell effect.
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