Abstract
Studied in the present paper are the transmission properties, the group velocity, the total phase, the phase time and the slowing-down factor of one-dimensional periodic photonic bandgap structures. The effects of the periodicity and non-periodicity of photonic structures and of the number of layers on the slowing down of light in these structures are also discussed. The group velocity of non-periodic (Fibonacci, Thue-Morse and Cantor) and hybrid (periodic/non-periodic) photonic bandgap structures are studied and compared to those of periodic structures. We show that the slowing-down factors at the edge of the bandgaps are higher for the hybrid (periodic/non-periodic) multilayer systems. The proposed structures have been modelled using the transfer matrix method.