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    Tunability and switching of Fano and Lorentz resonances in PTX -symmetric electronic systems

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    Type
    Article
    Authors
    Ye, Zhilu cc
    Farhat, Mohamed cc
    Chen, Pai Yen
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Date
    2020-07-20
    Embargo End Date
    2021-07-20
    Submitted Date
    2020-05-22
    Permanent link to this record
    http://hdl.handle.net/10754/664540
    
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    Abstract
    Resonance is a ubiquitous phenomenon observed in a wide range of physical systems. Recently, with the Fano resonance exerting remarkable potential for optical, acoustic, atomic, and electronic applications, it is vital to control and even dynamically reconfigure the resonance line shape and bandwidth, in addition to its frequency. In this work, we introduce a parity-time-reciprocal scaling (PTX)-symmetric structure, which can offer a promising avenue for tailoring the resonance frequency and line shape of electronic circuits. We have theoretically studied the resonance behavior of such a PTX-symmetric electronic system, particularly for dependencies of resonant peaks and line-shapes on the non-Hermiticity, coupling coefficient, and the scaling coefficient introduced by the reciprocal scaling (X) transformation. Our results demonstrate that, at resonance frequencies, a transition between Fano and Lorentzian line-shapes is possible with a specific reciprocal scaling rule applied to lumped-element circuits.
    Citation
    Ye, Z., Farhat, M., & Chen, P.-Y. (2020). Tunability and switching of Fano and Lorentz resonances in PTX-symmetric electronic systems. Applied Physics Letters, 117(3), 031101. doi:10.1063/5.0014919
    Publisher
    AIP Publishing
    Journal
    Applied Physics Letters
    DOI
    10.1063/5.0014919
    Additional Links
    http://aip.scitation.org/doi/10.1063/5.0014919
    ae974a485f413a2113503eed53cd6c53
    10.1063/5.0014919
    Scopus Count
    Collections
    Articles; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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