TY - JOUR T1 - All-Angle Negative Refraction in Two-Dimensional Anisotropic Triangular Photonic Crystals TT - شکست منفی تمام جهتی در بلور فوتونی دوبعدی ناهمسانگرد مثلثی JF - opsi JO - opsi VL - 20 IS - 0 UR - http://opsi.ir/article-1-349-en.html Y1 - 2014 SP - 865 EP - 868 KW - Anisotropic Photonic Crystals KW - Negative Refraction KW - Super Lens KW - Optical Imaging Super-Resolution. N2 - Abstract- This article studies the construction of a Super lens by an anisotropic triangular photonic crystal. The photonic bands and the contours of equi-frequency surfaces are studied by PWE method. This lens has an effective index of refraction of -1 for TM polarization, where the air holes relative radius are 0.35a and ω= 0.222(2πc/a). Propagation of electromagnetic waves through this Super lens and the construction of an image are also studied by means of FDTD method. Calculation shows that it is possible to have transmission rate more than 95% with a tailored adjustment of photonic crystal’s boundaries. M3 ER -