Abstract.
The band structures of symmetrical Fibonacci sequences (SFS) composed of positive and negative refractive index materials are studied with a transfer matrix method. A new type of omnidirectional zero-\(\bar{n}\) gaps is found in the SFS. In contrast to the Bragg gaps, such an omnidirectional zero-\(\bar{n}\) gap is insensitive to the incident angles and polarization, and is invariant upon the change of the ratio of the thicknesses of two media. It is found that omnidirectional zero-\(\bar{n}\) gap exists in all the SFS, and it is rather stable and independence of the structure sequence.
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Zhang, H., Zhang, Y., Shang, T. et al. Omnidirectional zero-\(\bar {\mathsf n}\) gap in symmetrical Fibonacci sequences composed of positive and negative refractive index materials. Eur. Phys. J. B 52, 37–40 (2006). https://doi.org/10.1140/epjb/e2006-00275-9
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DOI: https://doi.org/10.1140/epjb/e2006-00275-9