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Frequency Dependent Generalized Polarization Tensors

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Part of the Lecture Notes in Mathematics book series (LNM,volume 2098)

Abstract

This chapter introduces the notion of higher-order frequency-dependent polarization tensors (FDPTs). Multipolar asymptotic expansions for wave scattered by a target of characteristic size smaller than the wavelength can be written in terms of high-order derivatives of the fundamental solution to the Helmholtz equation and high-order FDPTs. This key property is useful in imaging. It shows that the notion of FDPTs is the natural extension of the one of GPTs for wave propagation. We also introduce the notion of scattering coefficients which plays the same role as the notion of contracted generalized polarization tensors.

Keywords

  • Asymptotic Formula
  • Helmholtz Equation
  • Scattered Wave
  • Polarization Tensor
  • Multipolar Expansion

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© 2013 Springer International Publishing Switzerland

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Ammari, H. et al. (2013). Frequency Dependent Generalized Polarization Tensors. In: Mathematical and Statistical Methods for Multistatic Imaging. Lecture Notes in Mathematics, vol 2098. Springer, Cham. https://doi.org/10.1007/978-3-319-02585-8_5

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