Broadband super-collimation in a hybrid photonic crystal structure

• Main Authors: Hamam, Rafif E. (Contributor), Soljacic, Marin (Contributor), Ibanescu, Mihai (Contributor), Johnson, Steven G (Author), Joannopoulos, John (Author)
• Other Authors: Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contributor), Massachusetts Institute of Technology. Center for Materials Science and Engineering (Contributor), Massachusetts Institute of Technology. Department of Mathematics (Contributor), Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Research Laboratory of Electronics (Contributor), Johnson, Steven G. (Contributor), Joannopoulos, John D. (Contributor)
• Format: Article
• Language: English
• Published: Optical Society of America, 2009-10-19T13:40:50Z.
• Subjects: Article
• Online Access: Get fulltext

We propose a two dimensional (2D) photonic crystal (PhC) structure that supports super-collimation over a large frequency range (over 4 times that of a traditional square lattice of holes). We theoretically and numerically investigate the collimation mechanism in our 2D structure, in comparison to that of two other frequently used related PhC structures. We also point out the potential importance of our proposed structure in the design of super-collimation-based devices for both monochromatic and polychromatic light.