Garanovich, IvanSukhorukov, AndreyKivshar, Yuri2009-08-122010-12-202009-08-122010-12-20Physical Review, E, Statistical, Nonlinear and Soft Matter Physics 74.6 (2006): 066609/1-41539-3755http://hdl.handle.net/10440/680http://digitalcollections.anu.edu.au/handle/10440/680We introduce periodic photonic structures where the strength of diffraction can be managed in a very broad frequency range. We show how to design arrays of curved waveguides where light beams experience wavelength-independent normal, anomalous, or zero diffraction. Our results suggest opportunities for efficient self-collimation, focusing, and reshaping of beams produced by white-light and supercontinuum sources. We also predict a possibility of multicolor Talbot effect, which is not possible in free space or conventional photonic lattices.4 pageshttp://www.sherpa.ac.uk/romeo/index.php "Author can archive pre-print (ie pre-refereeing) … post-print (ie final draft post-refereeing) … [and] publisher's version/PDF. Link to publisher version … [and] Copyright notice required. Publisher's version/PDF can be used on … employers web site." - from SHERPA/RoMEO site (as at 25/02/10). ©2006 The American Physical SocietyKeywords: Broadband networks; Crystal lattices; Natural frequencies; Statistical mechanics; Broadband diffraction; Photonic structures; Self-collimation; White-light; Diffraction2006-12-2110.1103/PhysRevE.74.0666092015-12-08