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Solution of a Scalar Two-Dimensional Nonlinear Diffraction Problem for Objects of Arbitrary Shape

https://doi.org/10.26907/2541-7746.2023.2.167-177

Abstract

In this study, the development, design, and software implementation of the methods for solving the nonlinear diffraction problem were performed. The influence of nonlinear medium defined by the Kerr law on the propagation of a wave passing through an object was examined. The differential and integral formulations of the problem and the nonlinear integral equation were considered. The problem was solved for different bodies with the use of various computational grids. Convergence graphs of the iterative processes were generated. The obtained graphical results were presented. The explicit and implicit methods for solving the integral equation were compared.

About the Authors

A. O. Lapich
Penza State University
Russian Federation

Penza, 440026 



M. Y. Medvedik
Penza State University
Russian Federation

Penza, 440026 



References

1. Kress R. Linear Integral Equations. Ser.: Applied Mathematical Sciences. Vol. 82. John F., Marsden J.E., Sirovich L. (Eds.). Berlin etc., Springer-Verlag, 1989. xi, 299 p. URL: https://doi.org/10.1007/978-3-642-97146-4.

2. Smirnov Y.G., Tsupak A.A. Diffraction of Acoustic and Electromagnetic Waves by Screens and Inhomogeneous Solids: Mathematical Theory. Moscow, Ru-Science, 2023. 216 p.

3. Il’inskii A.S., Kravtsov V.V., Sveshnikov A.G. Matematicheskie modeli elektrodinamiki [Mathematical Models of Electrodynamics]. Moscow, Vyssh. Shk., 1991. 224 p. (In Russian)

4. Andreev M.L., Zarkevich N.A., Isakov A.N., Kozyreva O.I., Plokhov I.V. Symmetryconserving triangulation of an N-dimensional cube. Nauchno-Tekh. Vestn. Povolzh’ya, 2011, no. 3, pp. 21–24. (In Russian)

5. Medvedik M.Yu., Smirnov Yu.G., Tsupak A.A. The two-step method for determining a piecewise-continuous refractive index of a 2D scatterer by near field measurements. Inverse Probl. Sci. Eng., 2020, vol. 28, no. 3, pp. 427–447. URL: https://doi.org/10.1080/17415977.2019.1597872.

6. Medvedik M.Yu., Smirnov Yu.G., Tsupak A.A. Non-iterative two-step method for solving scalar inverse 3D diffraction problem. Inverse Probl. Sci. Eng., 2020, vol. 28, no. 10, pp. 1474–1492. URL: https://doi.org/10.1080/17415977.2020.1727466.

7. Medvedik M.Yu. A subhierarchic method for solving the Lippmann–Schwinger integral equation on bodies of complex shapes. J. Commun. Technol. Electron., 2012, vol. 57, no. 2, pp. 158–163. URL: https://doi.org/10.1134/S1064226912010123.

8. Medvedik M.Y. Solution of integral equations by the subhierarchic method for generalized computational grids. Math. Models Comput. Simul., 2015, vol. 7, no. 6, pp. 570–580. URL: https://doi.org/10.1134/S207004821506006X.

9. Smirnov Yu.G., Labutkina D.A. On the solution of the nonlinear Lippmann–Schwinger integral equation by the method of contracting maps. Izv. Vyssh. Uchebn. Zaved. Povolzh. Reg. Fiz.-Mat. Nauki, 2023, no. 3, pp. 3–10. URL: https://doi.org/10.21685/2072-30402023-3-1. (In Russian)

10. Smirnov Y.G., Tsupak A.A. Direct and inverse scalar scattering problems for the Helmholtz equation in m. J. Inverse Ill-Posed Probl., 2022, vol. 30, No 1. P. 101–116. URL: https://doi.org/10.1515/jiip-2020-0060.


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For citations:


Lapich A.O., Medvedik M.Y. Solution of a Scalar Two-Dimensional Nonlinear Diffraction Problem for Objects of Arbitrary Shape. Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki. 2023;165(2):167–177. (In Russ.) https://doi.org/10.26907/2541-7746.2023.2.167-177

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ISSN 2541-7746 (Print)
ISSN 2500-2198 (Online)