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

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

We fabricate and characterize waveguides composed of closely spaced and longitudinally oriented silicon ridges etched into silicon-oninsulator 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 losses to similar schemes proposed in literature, an enhanced effective third-order nonlinear susceptibility, and high sensitivity to perturbations in its environment.

Original languageEnglish (US)
Pages (from-to)28224-28233
Number of pages10
JournalOptics Express
Volume23
Issue number22
DOIs
StatePublished - Nov 2 2015

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Puckett, M. W., Sharma, R., Vallini, F., Shahin, S., Monifi, F., Barrina, P. N., Mehravar, S., Kieu, K., & Fainman, Y. (2015). Silicon nanoridge array waveguides for nonlinear and sensing applications. Optics Express, 23(22), 28224-28233. https://doi.org/10.1364/OE.23.028224