Abstract
In this paper, the group velocities of electromagnetic wave for a one-dimensional coaxial photonic crystal in the stop bands with and without defect mode are studied. The results show that the group velocities exceed c (the speed of light in vacuum) in the stop band and it tends to be very slow in the defect mode. The group velocities also are obtained using the method of the transmission line and transmission matrix. The simulating results agree well with the experimental.
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Tong, Y., Zhang, Y., He, L. et al. Investigation on abnormal group velocities in 1D coaxial photonic crystals. CHINESE SCI BULL 51, 1281–1286 (2006). https://doi.org/10.1007/s11434-006-1281-3
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DOI: https://doi.org/10.1007/s11434-006-1281-3