Accession Number : AD1026841

Title :   Nonlinear Effects in Transformation Optics-Based Metamaterial Shields for Counter Directed Energy Weapon Defense

Descriptive Note : Technical Report


Personal Author(s) : Thompson,Jacob D

Full Text :

Report Date : 01 Jun 2016

Pagination or Media Count : 137

Abstract : Transformation optics is the current method used to design metamaterial structures that manipulate the path of electromagnetic radiation. This approach, however, relies upon a completely linear response of the polarization and magnetization fields with respect to incident electromagnetic field intensities. As those field intensities rise, such as from a hypothetical directed energy weapon, nonlinear effects, which are unaccounted for in a completely linear theory, are observed. In order to investigate the behavior of a transformation opticsderived structure in such a high-field intensity regime, we propose to employ an iterative solution to the Maxwell equations for such a structure, and compare these results to those of the purely linear transformation optics model. Examining the first-order results of this approach, we observe a strong dependence of response field amplitude upon the wavelength of incident radiation.

Descriptors :   directed energy weapons , electromagnetic radiation , electromagnetic fields , differential equations , Maxwells equations , wave equations

Subject Categories : Directed Energy Weapons
      Electricity and Magnetism
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE