title: A novel ultra-low loss hollow-core waveguide using subwavelength high-contrast gratings.
abstract: We propose a novel ultra-low loss single-mode hollow-core waveguide using subwavelength high-contrast grating (HCG). We analyzed and simulated the propagation loss of the waveguide and show it can be as low as 0.006 dB/m, three orders of magnitude lower than the lowest loss of the state-of-art chip-scale hollow waveguides. This novel HCG hollow-core waveguide design will serve as a basic building block in many chip-scale integrated photonic circuits enabling system-level applications including optical interconnects, optical delay lines, and optical sensors.
authors.affiliation: Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, USA.
authors.forename: Ye
authors.initials: Y
authors.lastname: Zhou
authors.forename: Vadim
authors.initials: V
authors.lastname: Karagodsky
authors.forename: Bala
authors.initials: B
authors.lastname: Pesala
authors.forename: Forrest G
authors.initials: FG
authors.lastname: Sedgwick
authors.forename: Connie J
authors.initials: CJ
authors.lastname: Chang-Hasnain