Silicon Nanoridge Array Waveguides for Nonlinear and Sensing Applications
Optics
2023-07-19 v1
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.
Cite
@article{arxiv.1506.05840,
title = {Silicon Nanoridge Array Waveguides for Nonlinear and Sensing Applications},
author = {Matthew W. Puckett and Rajat Sharma and Felipe Vallini and Shiva Shahin and Faraz Monifi and Peter N. Barrina and Soroush Mehravar and Khanh Kieu and Yeshaiahu Fainman},
journal= {arXiv preprint arXiv:1506.05840},
year = {2023}
}