Translator Disclaimer
28 February 2006 Ultra-flat bands in two-dimensional photonic crystals
Author Affiliations +
Abstract
We show that two-dimensional photonic crystals can be designed to have dispersion relations with an extended ultra-flat cross-section, meaning that for a fixed wave vector component kx the frequency of a band is almost constant when the other wave vector component, ky, takes all possible values. These ultra-flat bands are the result of a non-trivial saddle point in the dispersion relation located in the interior of the Brillouin zone. Interesting consequences include 1D-like behavior, improved super-collimation, and enhanced density of states.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mihai Ibanescu, Marin Soljacic, Steven G. Johnson, and J. D. Joannopoulos "Ultra-flat bands in two-dimensional photonic crystals", Proc. SPIE 6128, Photonic Crystal Materials and Devices IV, 612808 (28 February 2006); https://doi.org/10.1117/12.652776
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT


Back to Top