Complex photonic band structures in a photonic crystal containing lossy semiconductor INSB

T. W. Chang, J. J. Wu, C. J. Wu

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    In this work, complex photonic band structure (CPBS) in a semiconductor-dielectric photonic crystal (SDPC) operating at terahertz frequencies is theoretically investigated. The SDPC is air/(S/D)N /air where the dielectric layer D is SiO2, the semiconductor layer S is an intrinsic semiconductor InSb, and N is the number of periods. Using the experimental data for the strongly temperature- dependent plasma frequency and damping frequency for InSb, we calculate the CPBS for the infinite SDPC at distinct operating temperatures. The CPBS is then compared with the calculated transmittance, reflectance, and absorptance as well in the finite SDPC. Based on the calculated CPBS, the role played by the loss factor (damping frequency), in InSb is revealed. Additionally, from the calculated transmittance spectra, we further investigate the cutoff frequency for the SDPC. The dependences of cutoff frequency on the number of periods and the filling factor of semiconductor layer are numerically illustrated.

    Original languageEnglish
    Pages (from-to)153-167
    Number of pages15
    JournalProgress in Electromagnetics Research
    Volume131
    DOIs
    Publication statusPublished - 2012 Jan 1

    Fingerprint

    Photonic crystals
    Band structure
    Photonics
    photonics
    Semiconductor materials
    crystals
    Cutoff frequency
    Damping
    transmittance
    cut-off
    damping
    absorptance
    Air
    air
    plasma frequencies
    operating temperature
    Plasmas
    Temperature
    reflectance

    ASJC Scopus subject areas

    • Radiation
    • Condensed Matter Physics
    • Electrical and Electronic Engineering

    Cite this

    Complex photonic band structures in a photonic crystal containing lossy semiconductor INSB. / Chang, T. W.; Wu, J. J.; Wu, C. J.

    In: Progress in Electromagnetics Research, Vol. 131, 01.01.2012, p. 153-167.

    Research output: Contribution to journalArticle

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