Abstract

a novel phase-shifted Bragg grating for Bloch surface waves is proposed. The designed configuration is composed of a set of a special ridge fabrication on a multilayer stack supporting a Bloch surface wave. The properties of proposed structure are investigated in the wavelength range 1450 nm-1550 nm by using finite element method and finite-different time domain. Compared to existing phase-shifted Bragg grating structure based on surface plasmon polariton waves, the proposed configuration does not include any metal and the absorption losses upon propagation of the surface wave are negligibly small. Research results indicate that the proposed structure exhibits outstanding transmission properties.

© 2018 The Author(s)