Tsai Chang-Ching, Wu Shin-Tson
College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA.
J Opt Soc Am A Opt Image Sci Vis. 2008 Jun;25(6):1339-48. doi: 10.1364/josaa.25.001339.
The conical rigorous coupled-wave analysis (RCWA) is employed to calculate the polarization conversion through the excitation of surface plasmons on metallic gratings. Various examples are examined with this numerical scheme. Our calculated results are consistent with those obtained from experiment and from other numerical methods. Three types of subwavelength surface-relief gratings are studied for the capability of broadband polarization conversion in the visible region. For wide-angle applications, various incident angles are studied and high polarization conversion efficiency is achieved.
采用锥形严格耦合波分析（RCWA）来计算通过金属光栅上表面等离子体激元的激发实现的偏振转换。用这种数值方法研究了各种实例。我们的计算结果与实验结果以及其他数值方法得到的结果一致。研究了三种亚波长表面浮雕光栅在可见光区域的宽带偏振转换能力。对于广角应用，研究了各种入射角并实现了高偏振转换效率。
