中文摘要：

在这份报纸，一个有限差别的时间域方法被用来为由完全使用有效否定折射的 photonic 晶体(NRPC ) 的在目标察觉和成像的动态扫描的申请建模并且分析透镜。结果证明有一座传播山峰，与比统一远大的价值，源于在 0.3068 的回声频率(a/) 的禁止微型的乐队和回声刺激效果的影响。因此，从点来源射出的 lightwave 将在被极大地改进 backscattered 波浪的 refocusing 决定和成像决定的 NRPC 透镜集中于目标以后提供强壮的 backscattered 波浪。而且，有一个非动态的扫描计划的比较清楚地证明动态扫描计划提供改进 refocusing 分辨率。在结论，我们的调查优化了察觉和成像系统的表演，并且为把一个理想化的 LHM 透镜变换成一个身体上可实现的 NRPC 扁平的透镜提供了基础。

英文摘要：

In this paper a finite-difference time-domain method is used to model and analyze the application of dynamic scanning in target detection and imaging by using an effective negative-refraction photonic crystal （NR-PC） fiat lens. The results show that there is a transmission peak, with a value far greater than unity, resulting from the influence of mini-forbidden bands and resonance excitation effect at a resonance frequency of 0.3068（0./2）. Thus, the lightwave emitted from the point source will provide strong backscattered waves after being focused on the target by the NR-PC lens that greatly improves the refocusing resolution and imaging resolution of the backscattered wave. Furthermore, a comparison with a non-dynamic scanning scheme clearly demonstrates that the dynamic scanning scheme provides improved refocusing resolution. In conclusion, our investigation optimized the performance of a detection and imaging system, and provided the basis for converting an idealized LHM lens into a physically realizable NR-PC flat lens.