title: Silicon nanoridge array waveguides for nonlinear and sensing applications.
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 losses to similar schemes proposed in literature, an enhanced effective third-order nonlinear susceptibility, and high sensitivity to perturbations in its environment.
authors.forename: Matthew W
authors.initials: MW
authors.lastname: Puckett
authors.forename: Rajat
authors.initials: R
authors.lastname: Sharma
authors.forename: Felipe
authors.initials: F
authors.lastname: Vallini
authors.forename: Shiva
authors.initials: S
authors.lastname: Shahin
authors.forename: Faraz
authors.initials: F
authors.lastname: Monifi
authors.forename: Peter N
authors.initials: PN
authors.lastname: Barrina
authors.forename: Soroush
authors.initials: S
authors.lastname: Mehravar
authors.forename: Khanh
authors.initials: K
authors.lastname: Kieu
authors.forename: Yeshaiahu
authors.initials: Y
authors.lastname: Fainman