hp-Discontinuous Galerkin Finite Element Method for Computational Optics

D. Harutyunyan, Mikhail A. Bochev, Jacobus J.W. van der Vegt

    Research output: Contribution to conferencePoster

    Abstract

    In computational optics mathematical models and numerical simulations are basic tools to understand the behavior of light in complicated optical devices. The governing laws are well known and given by the Macroscopic Maxwell's equations. In this project a new numerical approach for solv- ing the Maxwell equations in three-dimensional complex domains will be developed, namely an hp-discontinuous Galerkin nite element method (hp- DGFEM). The hp-DGFEM uses locally rened meshes (h-renement) and polynomial approximations of varying degree in each element (p-renement). Since we are considering completely discontinuous nite element spaces, we can easily deal with elements of various shapes and order, and the method is ideally suited for hp-adaptivity. The hp-adaptivity is benecial when one has to deal with local singularities and rapidly changing or discontinuous material properties. A well designed hp-nite element discretization is ca- pable of achieving exponential convergence. Also, hp-DGFEM can easily deal with complex domains using unstructured meshes and the method can preserve accuracy on highly irregular meshes. The project presently is focusing on the design of elements which satisfy the div-curl constraints and on designing a discontinuous Galerkin formulation for the time-dependent Maxwell equations.
    Original languageEnglish
    Pages-
    Publication statusPublished - 29 Nov 2002
    EventNWO Computational Science Kickoff Meeting 2002 - Amsterdam, Netherlands
    Duration: 29 Nov 200229 Nov 2002

    Conference

    ConferenceNWO Computational Science Kickoff Meeting 2002
    CountryNetherlands
    CityAmsterdam
    Period29/11/0229/11/02

    Fingerprint

    Maxwell equations
    Optics
    Finite element method
    Polynomial approximation
    Optical devices
    Materials properties
    Mathematical models
    Computer simulation

    Keywords

    • METIS-206543

    Cite this

    Harutyunyan, D., Bochev, M. A., & van der Vegt, J. J. W. (2002). hp-Discontinuous Galerkin Finite Element Method for Computational Optics. -. Poster session presented at NWO Computational Science Kickoff Meeting 2002, Amsterdam, Netherlands.
    Harutyunyan, D. ; Bochev, Mikhail A. ; van der Vegt, Jacobus J.W. / hp-Discontinuous Galerkin Finite Element Method for Computational Optics. Poster session presented at NWO Computational Science Kickoff Meeting 2002, Amsterdam, Netherlands.
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    Harutyunyan, D, Bochev, MA & van der Vegt, JJW 2002, 'hp-Discontinuous Galerkin Finite Element Method for Computational Optics' NWO Computational Science Kickoff Meeting 2002, Amsterdam, Netherlands, 29/11/02 - 29/11/02, pp. -.

    hp-Discontinuous Galerkin Finite Element Method for Computational Optics. / Harutyunyan, D.; Bochev, Mikhail A.; van der Vegt, Jacobus J.W.

    2002. - Poster session presented at NWO Computational Science Kickoff Meeting 2002, Amsterdam, Netherlands.

    Research output: Contribution to conferencePoster

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    AU - Harutyunyan, D.

    AU - Bochev, Mikhail A.

    AU - van der Vegt, Jacobus J.W.

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    N2 - In computational optics mathematical models and numerical simulations are basic tools to understand the behavior of light in complicated optical devices. The governing laws are well known and given by the Macroscopic Maxwell's equations. In this project a new numerical approach for solv- ing the Maxwell equations in three-dimensional complex domains will be developed, namely an hp-discontinuous Galerkin nite element method (hp- DGFEM). The hp-DGFEM uses locally rened meshes (h-renement) and polynomial approximations of varying degree in each element (p-renement). Since we are considering completely discontinuous nite element spaces, we can easily deal with elements of various shapes and order, and the method is ideally suited for hp-adaptivity. The hp-adaptivity is benecial when one has to deal with local singularities and rapidly changing or discontinuous material properties. A well designed hp-nite element discretization is ca- pable of achieving exponential convergence. Also, hp-DGFEM can easily deal with complex domains using unstructured meshes and the method can preserve accuracy on highly irregular meshes. The project presently is focusing on the design of elements which satisfy the div-curl constraints and on designing a discontinuous Galerkin formulation for the time-dependent Maxwell equations.

    AB - In computational optics mathematical models and numerical simulations are basic tools to understand the behavior of light in complicated optical devices. The governing laws are well known and given by the Macroscopic Maxwell's equations. In this project a new numerical approach for solv- ing the Maxwell equations in three-dimensional complex domains will be developed, namely an hp-discontinuous Galerkin nite element method (hp- DGFEM). The hp-DGFEM uses locally rened meshes (h-renement) and polynomial approximations of varying degree in each element (p-renement). Since we are considering completely discontinuous nite element spaces, we can easily deal with elements of various shapes and order, and the method is ideally suited for hp-adaptivity. The hp-adaptivity is benecial when one has to deal with local singularities and rapidly changing or discontinuous material properties. A well designed hp-nite element discretization is ca- pable of achieving exponential convergence. Also, hp-DGFEM can easily deal with complex domains using unstructured meshes and the method can preserve accuracy on highly irregular meshes. The project presently is focusing on the design of elements which satisfy the div-curl constraints and on designing a discontinuous Galerkin formulation for the time-dependent Maxwell equations.

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    Harutyunyan D, Bochev MA, van der Vegt JJW. hp-Discontinuous Galerkin Finite Element Method for Computational Optics. 2002. Poster session presented at NWO Computational Science Kickoff Meeting 2002, Amsterdam, Netherlands.