A novel design of dielectric perfect invisibility devices

T. Ochiai, U. Leonhardt, J. C. Nacher

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


The aim of an invisibility device is to guide light around any object put inside, being able to hide objects from sight. In this work, we propose a novel design of dielectric invisibility media based on negative refraction and optical conformal mapping that seems to create perfect invisibility. This design has some advantages and more relaxed constraints compared with already proposed schemes. In particular, it represents an example where the time delay in a dielectric invisibility device is zero. Furthermore, due to the impedance matching of negatively refracting materials, the reflection should be close to zero. These findings strongly indicate that perfect invisibility with optically isotropic materials is possible. Finally, the area of the invisible space is also discussed.

Original languageEnglish
Article number032903
Number of pages13
JournalJournal of Mathematical Physics
Issue number3
Publication statusPublished - Mar 2008


  • Refractive index
  • Materials properties
  • Dielectrics
  • Metamaterials


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