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  1. Article ; Online: A combination of angle insensitive stopband/passband filters based on one-dimensional hyperbolic metamaterial quasiperiodic photonic crystals.

    Mohamed, Aliaa G / Elsayed, Hussein A / Sabra, Walied / Aly, Arafa H / Mehaney, Ahmed

    RSC advances

    2023  Volume 13, Issue 27, Page(s) 18238–18252

    Abstract: In the present work, we demonstrate the transmittance properties of one dimensional (1D) quasi-periodic photonic crystals that contain a superconductor material and a hyperbolic metamaterial (HMM). A HMM layer is engineered by the subwavelength undoped ... ...

    Abstract In the present work, we demonstrate the transmittance properties of one dimensional (1D) quasi-periodic photonic crystals that contain a superconductor material and a hyperbolic metamaterial (HMM). A HMM layer is engineered by the subwavelength undoped and doped Indium Arsenide (InAs) multilayers. Many resonance peaks with angle stability are obtained from the proposed Fibonacci sequence structure using the transfer matrix method (TMM). In this case, the Fibonacci sequence serves as the mainstay in the design of our structure. The permittivity of the utilized superconductor and the HMM are also analyzed, respectively. The numerical findings showed that the incident angle has no effect on the wavelength positions of the resonance peaks. The effects of many parameters such as the superconductor material thickness, Fibonacci sequence number, and sequence type are discussed for the proposed structure. At various operating temperatures and superconductor material types, the transmittance characteristics of the proposed structure were also examined. The designed structure can serve as a combination of pass/stop band filters for near-infrared (NIR) applications.
    Language English
    Publishing date 2023-06-20
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d3ra02303f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range.

    Mohamed, Aliaa G / Elsayed, Hussein A / Mehaney, Ahmed / Aly, Arafa H / Sabra, Walied

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 18331

    Abstract: We have theoretically demonstrated and explored the transmittance characteristics of a one-dimensional binary photonic crystal composed of metamaterial (MM) and nanocomposite (NC) layers. The NC layer was designed from silver nanoparticles (Ag-NPs) in a ... ...

    Abstract We have theoretically demonstrated and explored the transmittance characteristics of a one-dimensional binary photonic crystal composed of metamaterial (MM) and nanocomposite (NC) layers. The NC layer was designed from silver nanoparticles (Ag-NPs) in a host material as Yttrium oxide (Y
    Language English
    Publishing date 2022-10-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-21455-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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