| RESEARCH INTERESTS |
- Computational electromagnetism Finite difference methods, finite elements, finite volumes for time dependent electromagnetic problems.
- Methods of finite differences in the field of time Classical and non-conventional techniques, direct and indirect algorithms, hybrid schemes, superior order discretization techniques, curvilinear coordinate systems, etc.
- Error minimization and optimized algorithms Techniques for reducing phase errors, improving on a single-frequency or broadband basis, generalizing areas with losses, separate or simultaneous treatment of space-time errors, improved time integrators, determining the optimal time step, interfacial discrimination, etc.
- Computational modeling of problems with uncertainties Stochastic FDTD techniques, polynomial chaos, intrusive stochastic algorithms, collocation methods and sparse grids, compressed sensing, Monte-Carlo methods.
- Parallelization of algorithms in graphics processing cards Minimization of simulation execution times, acceleration of explicit methods and implicit algorithms, implementation of best practices
- Modeling and simulation of realistic problems Effects of EM radiation on biological tissues, determination of lightning lattice fields, EM compatibility problems, metallic, nanomaterial and graphene devices, optical filters, wireless power transmission, antennas, wireless propagation, etc.
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| INDICATIVE PUBLICATION |
- T. T. Zygiridis, S. A. Amanatiadis, A. D. Papadopoulos, and N. V. Kantartzis, "A finite-difference time-domain method for Lorentz dispersive media with reduced errors within arbitrary frequency bands," Comput. Math. Appl., vol. 137, pp. 102-111, 2023.
- A. D. Papadopoulos, T. Zygiridis, Y. Kopsinis, and Elias, N. Glytsis, "An anisotropic sparse adaptive polynomial chaos method for the uncertainty quantification of resonant gratings-performance," IEEE Light. Technol., vol. 40, no. 12, pp. 3640-3646, June 2022.
- T. T. Zygiridis, A. D. Papadopoulos, and N. V. Kantartzis, "Error-optimized finite-difference modeling of wave propagation problems with Lorentz material dispersion," J. Comput. Phys., vol. 452, pp. 1-10, Mar. 2022.
- T. Zygiridis, G. Kommatas, A. Papadopoulos, and N. Kantartzis, "Modeling of stochastic EMC problems with anisotropic polynomial chaos expansions," IEEE Electromagn. Compat. Mag., vol. 10, no. 2, pp. 70-79, 2nd Quarter 2021.
- T. T. Zygiridis, N. V. Kantartzis, and T. D. Tsiboukis, “Regression-based stochastic study of electromagnetic fields due to lightning strikes,” IEEE Trans. Electromagn. Compat., vol. 61, no. 5, pp. 1630-1638, Oct. 2019.
- T. T. Zygiridis, "Improved unconditionally-stable FDTD method for three-dimensional wave-propagation problems," IEEE Trans. Microw. Theory Tech., vol. 65, no. 6, pp. 1921-1928, June 2017. DOI: 10.1109/TMTT.2016.2645218.
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