Ultrafast Optical Switching in Three-Dimensional Photonic Crystals
2003; American Physical Society; Volume: 91; Issue: 21 Linguagem: Inglês
10.1103/physrevlett.91.213903
ISSN1092-0145
AutoresD. A. Mazurenko, Robert Kerst, J. I. Dijkhuis, А. В. Акимов, В. Г. Голубев, D. A. Kurdyukov, А. Б. Певцов, А. В. Селькин,
Tópico(s)Plasmonic and Surface Plasmon Research
ResumoWe present the first experimental investigation of ultrafast optical switching in a three-dimensional photonic crystal made of a Si-opal composite. Ultrafast (30 fs) changes in reflectivity around the photonic stop band up to 1% were measured for moderate pump power (70 microJ/cm(2)). Short-lived photoexcited carriers in silicon induce changes in the dielectric constant of Si and diminish the constructive interference inside the photonic crystal. The results are analyzed within a model based on a two-band mixing formalism.
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