Research

My research interests include:

• Wave propagation and applications to imaging
• Underwater acoustics
• Numerical methods for PDEs
• Deep learning methods for inverse problems
• Inverse problems
• Absorbing boundary conditions

Publications

Journal Papers

Arnold D. Kim, S. Papadimitropoulos, Joseph Simpson, C. Tsogka, Quantitative GPR-SAR imaging over a rough air-soil interface, IEEE Transactions on Geoscience and Remote Sensing, Submitted.

C. Carvalho, E. Cortes, C. Tsogka, S. Papadimitropoulos, Solving forward and inverse wave scattering via boundary integral equations and deep learning. Applications to cloaking design, Journal of Computational Physics, Submitted.

A. Kahana, S. Papadimitropoulos, E. Turkel, D. Batenkov, A physically informed deep-learning approach for locating sources in a waveguide, The Journal of the Acoustical Society of America (2023).

S. Papadimitropoulos, D. Givoli, The Double Absorbing Boundary method for the Helmholtz equation, Applied Numerical Mathematics (2021).

S. Papadimitropoulos, D. Rabinovich, D. Givoli, The Double Absorbing Boundary method incorporated in a high-order spectral element formulation, Journal of Theoretical and Computational Acoustics, (2020).

S. Papadimitropoulos, C. Tsogka, D.A. Mitsoudis, Imaging in three-dimensional waveguides with partial aperture data , Journal of Theoretical and Computational Acoustics, (2020).

C. Tsogka, D. A. Mitsoudis, S. Papadimitropoulos, Imaging extended reflectors in a terminating waveguide, SIAM Journal on Imaging Science, 11(2), 1680–1716, (2018).

C. Tsogka, D. A. Mitsoudis, S. Papadimitropoulos, Partial-aperture array imaging in acoustic waveguides, Inverse Problems, Vol. 32, p. 125011 (31pp), (2016).

C. Tsogka, D. A. Mitsoudis, S. Papadimitropoulos, Selective imaging of extended reflectors in two-dimensional waveguides, SIAM Journal on Imaging Science, Vol. 6, No. 4, pp. 2714-2739, (2013).

Conference Papers

S. Papadimitropoulos, C. Tsogka, J. Tucker, Learning-Based Super-Resolution in Synthetic Aperture Radar: A Physics-Informed Approach, IEEE International Symposium on Antennas & Propagation and USNC-URSI Radio Science Meeting, Detroit, Michigan, USA, July 12-17, 2026

E. Cortes, C. Carvalho, S. Papadimitropoulos, C. Tsogka, A deep learning approach for optical cloaking device design, 17th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Montreal, Canada, June 22-26, 2026

A. D. Kim, S. Papadimitropoulos, J. Simpson, C. Tsogka, Spectrally characterizing subsurface targets with GPR-SAR, 17th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Montreal, Canada, June 22-26, 2026

G. Mwamba, C. Tsogka, S. Papadimitropoulos, Imaging in two-dimensional waveguides with complex geometry, 17th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Montreal, Canada, June 22-26, 2026

S. Papadimitropoulos, C. Tsogka, J. Tucker, Physics-informed learned deconvolution for super-resolution SAR imaging, IEEE Conference on Computational Imaging Using Synthetic Apertures, Albany, New York, USA, May 26-29, 2026

S. Papadimitropoulos, C. Tsogka, J. Tucker, Physically Informed Neural Networks for Synthetic Aperture Imaging, IEEE Conference on Computational Imaging Using Synthetic Apertures, College Park, Maryland, USA, June 2-6, 2025

S. Papadimitropoulos, C. Tsogka, M. Hasan, Synthetic aperture imaging using physically informed convolutional neural networks, The 11th International Conference on Inverse Problems: Modeling and Simulation, Malta, May 26 - June 01, 2024

S. Papadimitropoulos, C. Tsogka, M. Hasan, Synthetic aperture imaging using physically informed convolutional neural networks, IEEE Conference on Computational Imaging Using Synthetic Apertures, Boulder, Colorado, USA, May 20- 23, 2024

S. Papadimitropoulos, C. Tsogka, D. A. Mitsoudis, Imaging in three-dimensional terminating waveguides with partial aperture data, Proceedings of the 14th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Vienna, Austria, August 25-30, 2019.

C. Tsogka, D.A. Mitsoudis, S. Papadimitropoulos, Imaging extended reflectors in a terminating waveguide, Proceedings of the 6th European Conference on Computational Mechanics, Glagow, United Kingdom, June 11 - 15, 2018.

C. Tsogka, D.A. Mitsoudis, S. Papadimitropoulos, Imaging extended reflectors in two-dimensional waveguides, Proceedings of the 5th European Conference on Computational Mechanics, Barcelona, Spain, June 20 - 25, 2014.

C. Tsogka, D.A. Mitsoudis, S. Papadimitropoulos, Imaging extended reflectors in a two-dimensional waveguide, Proceedings of the 11th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Tunis, Tunisia, June 3-7, 2013.