Wu Jiaye, Yang Xiangbo
Opt Express. 2017 Oct 30;25(22):27724-27735. doi: 10.1364/OE.25.027724.
In this paper, we construct a 1D PT-symmetric Thue-Morse aperiodic optical waveguide network (PTSTMAOWN) and mainly investigate the ultrastrong extraordinary transmission and reflection. We propose an approach to study the photonic modes and solve the problem of calculating photonic modes distributions in aperiodic networks due to the lack of dispersion functions and find that in a PTSTMAOWN there exist more photonic modes and more spontaneous PT-symmetric breaking points, which are quite different from other reported PT-symmetric optical systems. Additionally, we develop a method to sort spontaneous PT-symmetric breaking point zones to seek the strongest extraordinary point and obtain that at this point the strongest extraordinary transmission and reflection arrive at 2.96316 × 10 and 1.32761 × 10, respectively, due to the PT-symmetric coupling resonance and the special symmetry pattern of TM networks. These enormous gains are several orders of magnitude larger than the previous results. This optical system may possess potential in designing optical amplifier, optical logic elements in photon computers and ultrasensitive optical switches with ultrahigh monochromatity.
在本文中，我们构建了一个一维PT对称图厄 - 摩尔斯非周期光波导网络（PTSTMAOWN），并主要研究其超强的异常透射和反射。我们提出了一种研究光子模式的方法，解决了由于缺乏色散函数而难以计算非周期网络中光子模式分布的问题，并发现PTSTMAOWN中存在更多的光子模式和更多的自发PT对称破缺点，这与其他已报道的PT对称光学系统有很大不同。此外，我们开发了一种对自发PT对称破缺点区域进行排序的方法，以寻找最强的异常点，并得出在该点处，由于PT对称耦合共振和TM网络的特殊对称模式，最强的异常透射和反射分别达到2.96316×10和1.32761×10。这些巨大的增益比之前的结果大几个数量级。该光学系统在设计光放大器、光子计算机中的光逻辑元件以及具有超高单色性的超灵敏光开关方面可能具有潜力。
