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arXiv · 1506.05840

Silicon Nanoridge Array Waveguides for Nonlinear and Sensing Applications

Matthew W. Puckett·Rajat Sharma·Felipe Vallini·Shiva Shahin·Faraz Monifi·Peter N. Barrina·Soroush Mehravar·Khanh Kieu·Yeshaiahu Fainman
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Abstract

We fabricate and characterize waveguides composed of closely spaced and longitudinally oriented silicon ridges etched into silicon-on-insulator wafers. Through both guided mode and bulk measurements, we demonstrate that the patterning of silicon waveguides on such a deeply subwavelength scale is desirable for nonlinear and sensing applications alike. The proposed waveguide geometry simultaneously exhibits comparable propagation loss to similar schemes proposed in literature, an enhanced effective third-order nonlinear susceptibility, and high sensitivity to perturbations in its environment.

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Matthew W. Puckett, Rajat Sharma, Felipe Vallini, Shiva Shahin, Faraz Monifi, Peter N. Barrina, Soroush Mehravar, Khanh Kieu, Yeshaiahu Fainman. 2015-06-18. Silicon Nanoridge Array Waveguides for Nonlinear and Sensing Applications. https://doi.org/10.1364/oe.23.028224

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