5 November 2002 Split-mode-enhanced second-harmonic generation in porous silicon-coupled microcavities
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Abstract
The enhancement of the second-harmonic generation (SHG) in all-silicon coupled microcavities (CMC) based on one-dimensional photonic crystals is experimentally studied. CMC are fabricated from alternating layers of electrochemically grown mesoporous silicon and consist of two identical half-wavelength-thick cavity spacers separated by additional porous silicon photonic crystal. The enhancement of the second-harmonic response of CMC in the vicinity of splitted cavity modes is experimentally observed in both angular (wave vector) and frequency domain spectra. The variation of transmission of the intermediate photonic crystal, which controls the interaction between coupled cavity spacers, leads to monotonic dependence of the SHG resonances splitting on the number of pairs of the intermediate Bragg reflector.
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Tatyana V. Dolgova, Tatyana V. Dolgova, Michail G. Martemyanov, Michail G. Martemyanov, Evgenia M. Kim, Evgenia M. Kim, D. G. Gusev, D. G. Gusev, Andrew A. Fedyanin, Andrew A. Fedyanin, } "Split-mode-enhanced second-harmonic generation in porous silicon-coupled microcavities", Proc. SPIE 4808, Optical Properties of Nanocrystals, (5 November 2002); doi: 10.1117/12.452250; https://doi.org/10.1117/12.452250
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