Kwon Do-Hoon, Werner Douglas H, Kildishev Alexander V, Shalaev Vladimir M
Department of Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Opt Express. 2008 Aug 4;16(16):11822-9. doi: 10.1364/oe.16.011822.
A chiral optical negative-index metamaterial design of doubly periodic construction for the near-infrared spectrum is presented. The chirality is realized by incorporating sub-wavelength planar silver-aluminasilver resonators and arranging them in a left-handed helical (i.e., stair-step) configuration as a wave propagates through the metamaterial. An effective material parameter retrieval procedure is developed for general bi-isotropic metamaterials. A numerical design example is presented and the retrieved effective material parameters exhibiting a negative index of refraction are provided.
提出了一种用于近红外光谱的双周期结构的手性光学负折射率超材料设计。通过并入亚波长平面银-铝-银谐振器并将它们以左旋螺旋（即阶梯状）配置排列来实现手性，当波传播通过超材料时。针对一般的双各向同性超材料开发了一种有效的材料参数检索程序。给出了一个数值设计示例，并提供了检索到的显示负折射率的有效材料参数。
