Abstract
Janus spheres are spherical objects whose surfaces consist of two different regions on which different boundary conditions apply. They are of interest in many fields of technology and hold an enormous potential of new applications in material sciences. Their scattering properties are not only of importance for diagnostic purposes during the production process of these objects but also for discovering new applications. However, there is very little information about it in the literature. It is therefore demonstrated in this chapter that the T-matrix approach can be successfully applied to this spherical scattering object. In so doing, a generalized Robin boundary condition is introduced whose limiting behavior allows us to combine the sharp splitting of the spherical boundary into two different regions with the T-matrix approach. Scattering results for three different types of Janus spheres are presented, and the convergence behavior of the method and the reliability of the obtained results are discussed in detail. This chapter ends with a description of the corresponding Python programs. Appendix C provides a complete listing of these programs.
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Rother, T. (2020). Scattering on Janus Spheres. In: Sound Scattering on Spherical Objects. Springer, Cham. https://doi.org/10.1007/978-3-030-36448-9_3
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DOI: https://doi.org/10.1007/978-3-030-36448-9_3
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