Open AccessGraded Photonic Crystals for Luneburg Lens
Author(s) -
F. Gaufillet,
E. Akmansoy
Publication year - 2016
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2016.2521261
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
The Luneburg lens is a radially graded index refracting structure that forms geometrical images of two given concentric spheres on each other. This remarkable property of the Luneburg lens makes it very attractive for various domains of frequency and applications. However, its continuous gradient index is difficult to realize in practice. Herein, we propose the use of graded photonic crystals to attain the radially graded index of the Luneburg lens and show that graded photonic crystals with fitted gradient of filling factor exhibit the properties of the Luneburg lens.