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广角光接收机在无线光通信、传感和检测系统中有明显的优势和广泛的应用前景然而,当它采用传统光器件来实现时,其视场角会受到这些组件内在矛盾的限制,而传统的视场角扩展机制无法从根本上打破这些束缚.为此,提出金属等离子表面波(SPP)作为有效实现广角接收机的潜在机制.文中列举了两个SPP的应用实例,生动地说明了它可以破解一些传统方法无法克服的矛盾,提供意想不到的解决方案;而且,在某些情况下,为了利用SPP,人们需要探索一些不寻常的条件.探讨了SPP在光异常透射效应中的几种机制,并认为与入射角度无关的局域金属等离子表面波(localized SPP)最适合用来实现广角接收.还报道了关于斜入射空间光激励SPP的结构优化的一些最新进展.
Wide-angle optical receivers have distinct advantages and broad application prospects in wireless optical communication, sensing and detection systems. However, when they are implemented with conventional optical devices, their viewing angles are limited by the inherent contradictions of these components, The traditional FOV mechanism can not fundamentally break these constraints.Therefore, the metal surface plasmon (SPP) is proposed as a potential mechanism for effectively realizing the wide-angle receiver.The application examples of two SPPs are listed in the article, It can solve some contradictions that traditional methods can not overcome and provide unexpected solutions.In addition, in some cases, in order to utilize SPP, one needs to explore some unusual conditions.It is discussed that the SPP in light anomalous transmission effect And considered that local SPP localized with the angle of incidence is best suited to achieve wide-angle reception. Some recent developments in the structural optimization of photoexcited SPPs in oblique incident space are also reported.