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Efficient second-harmonic generation in nonlinear plasmonic waveguide
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DOI：10.1364/OL.36.003371.png)
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We theoretically studied a nonlinear optical process in a hybrid plasmonic waveguide composed of a nonlinear dielectric waveguide and a metal film with a separation of a thin air gap. Owing to the hybridization effect of guided mode and surface plasmon polariton mode, this particular waveguide is able to confine the optical-field in a deep subwavelength scale together with low propagation loss. Based on this, efficient second-harmonic generations (SHG) were revealed at the fundamental wavelength of lambda = 1.55 mu m with good field confinement. The SHG efficiency, as well as the coupling coefficient and mode area, were analyzed and discussed in detail with respect to the structural parameters. (C) 2011 Optical Society of America
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3.3
论文数:
4.0W
被引数:
7.6W
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