Loading...

Cloaking of irregularly shaped bodies using coordinate transformation

Sidhwa, H. H ; Sharif University of Technology | 2019

423 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.ijleo.2019.163201
  3. Publisher: Elsevier GmbH , 2019
  4. Abstract:
  5. The inception of transformation optics has opened avenues for designing of a plethora of applications related to the propagation of electromagnetic waves in anisotropic media. In this paper, an algorithm is proposed using a coordinate transformation for the purpose of designing a cloak for a body having an arbitrary convex geometry. For the purpose of verification of the algorithm, a ray tracing process is carried out for an ellipsoid as well as an irregularly shaped body, both having axial symmetry. The ray tracing is carried out in a two dimensional plane since the transmitted ray vector would lie in the plane of incidence containing the incident ray vector and the normal vector to the cloak at the point of incidence. The approach not only reduces the numerical and analytical complexity compared to the conventional approach, but also reduces the order of singularity of the equation of Hamiltonian, improving the ability of the algorithm to cloak bodies with complex geometries which cannot be done using the conventional method. © 2019 Elsevier GmbH
  6. Keywords:
  7. Arbitrary geometry ; Cloaking ; Coordinate transformation ; Geometrical optics ; Transformation optics ; Anisotropic media ; Backpropagation ; Electromagnetic wave propagation ; Electromagnetic waves ; Geometrical optics ; Geometry ; Numerical methods ; Ray tracing ; Arbitrary geometry ; Cloaking ; Co-ordinate transformation ; Conventional approach ; Conventional methods ; Propagation of electromagnetic waves ; Transformation optics ; Two dimensional plane ; Mathematical transformations
  8. Source: Optik ; Volume 197 , 2019 ; 00304026 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0030402619310915