2010/04/29 by G. Dupont, S. Guenneau, S. Enoch · 2 citations
Materials Science · Physics and Astronomy · #Cloak #Computation #Discontinuity (linguistics) #Eigenvalues and eigenvectors #Electromagnetic Scattering and Analysis #Matrix (chemical analysis) #Metamaterials and Metasurfaces Applications #Quasicrystal Structures and Properties #Scattering #Surface (topology) #Surface of revolution #Transformation (genetics) #physics.comp-ph #physics.optics
paper · pdf · doi:10.1080/09500340.2011.573878
published in Journal of Modern Optics 58(9), 786-795 (Taylor & Francis) · 7 pages, 4 figures
arxiv created 2010/04/29 · openalex publication_date 2011/05/16 · arxiv updated 2015/05/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We designed three-dimensional electromagnetic cloaks, starting from a small region of complex shape instead of a point. We derive the expression of a transformation matrix describing an object with a surface of revolution and its associated non-singular cloak. We note that while none of the eigenvalues vanish inside the cloak, they suffer a discontinuity on its inner surface. Moreover, all three eigenvalues are independent of the radius in the concealed object. The validity of our analytical results is confirmed by finite edge-element computations showing scattering is much reduced when two objects are dressed with their accompanying cloak. We note that neither the objects nor the cloaks are invisible on their own.