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    A Dual-mesh Framework for Multiphysics Simulation of Photoconductive Terahertz Devices

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    dual mash.pdf
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    Type
    Conference Paper
    Authors
    Chen, Liang cc
    Bagci, Hakan cc
    KAUST Department
    Computational Electromagnetics Laboratory
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2020-10-21
    Online Publication Date
    2020-10-21
    Print Publication Date
    2020-08
    Permanent link to this record
    http://hdl.handle.net/10754/665839
    
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    Abstract
    The operation of a photoconductive terahertz (THz) device relies on optoelectronic interactions and THz radiation. Although these two processes are coupled, in simulations, they are often modeled separately due to the large difference between the frequencies of optical and THz electromagnetic waves. To model both processes in a single simulation, we propose a dual-mesh discontinuous Galerkin (DG) scheme. Optoelectronic interactions and THz radiation are accounted for by solving, respectively, a coupled system of Maxwell and drift-diffusion equations discretized on a fine mesh and only the Maxwell equations discretized on a coarse mesh. This approach uses an efficient high-order interpolation scheme to “connect” electric field and current discretized on these two meshes. The proposed scheme is validated against experimental results.
    Citation
    Chen, L., & Bagci, H. (2020). A Dual-mesh Framework for Multiphysics Simulation of Photoconductive Terahertz Devices. 2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science. doi:10.23919/ursigass49373.2020.9232184
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Conference/Event name
    2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science
    ISBN
    978-1-7281-5690-3
    DOI
    10.23919/URSIGASS49373.2020.9232184
    Additional Links
    https://ieeexplore.ieee.org/document/9232184/
    https://ieeexplore.ieee.org/document/9232184/
    https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9232184
    ae974a485f413a2113503eed53cd6c53
    10.23919/URSIGASS49373.2020.9232184
    Scopus Count
    Collections
    Conference Papers; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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