Analysis of photonic band structure in a onedimensional photonic crystal containing singlen negative materials

Da Wei Yeh, Chien-Jang Wu

    Research output: Contribution to journalArticle

    19 Citations (Scopus)

    Abstract

    A theoretical analysis on the angle- and thickness-dependent photonic band structure in a one-dimensional photonic crystal containing single-negative (SNG) materials is presented. The photonic crystal consists of two alternating SNG materials, including that one has a negative permittivity (ENG) and the other has a negative permeability (MNG). It is found that there are two types of SNG gaps. The first is the low-frequency gap which is very insensitive to the incident angle in the transversal electric (TE) wave. The second gap, which strongly relies on the incident angle for both TE and transversal magnetic (TM) waves, will close at the zero bandgap frequency at which the impedance match as well as the phase match in the constituent ENG and MNG layers must be simultaneously satisfied. This zero bandgap frequency is also strongly dependent on the incident angle. The band edges and the gap maps are investigated rigorously as a function of the incident angle and the ratio of thickness of the two SNG layers. The analyses are made in the lossless and lossy cases for both TE and TM waves. The inclusion of the loss enables us to further clarify two fundamentally distinct second SNG gaps which are separated by a threshold angle of incidence.

    Original languageEnglish
    Pages (from-to)16666-16680
    Number of pages15
    JournalOptics Express
    Volume17
    Issue number19
    DOIs
    Publication statusPublished - 2009 Sep 14

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    photonics
    crystals
    permeability
    incidence
    impedance
    inclusions
    permittivity
    low frequencies
    thresholds
    single crystals

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    Analysis of photonic band structure in a onedimensional photonic crystal containing singlen negative materials. / Yeh, Da Wei; Wu, Chien-Jang.

    In: Optics Express, Vol. 17, No. 19, 14.09.2009, p. 16666-16680.

    Research output: Contribution to journalArticle

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