Quasicrystals 3D Photonic Image-Structure Projection Technology. This website is interesting: http://unifiedfractalfield.com/ Negative Refraction and Imaging Using 12-fold-Symmetry Quasicrystals Zhifang Feng, Xiangdong Zhang, Yiquan Wang, Zhi-Yuan Li, Bingying Cheng, and Dao-Zhong Zhang Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China Department of Physics, Beijing Normal University, Beijing 100875, China (Received 5 July 2004; published 23 June 2005) Recently, negative refraction of electromagnetic waves in photonic crystals was demonstrated experi- mentally and subwavelength images were observed. However, these investigations all focused on the periodic structure. Here, we report a new theoretical and experimental finding that negative refraction can appear in some transparent quasicrystalline photonic structures. The photonic quasicrystals (PQCs) exhibit an ef