Photonics Research, 2018, 6 (6): 06000579, Published Online: Jul. 2, 2018
Extraordinary characteristics for one-dimensional parity-time-symmetric periodic ring optical waveguide networks 
Download： 542次
Figures & Tables
Fig. 1. Schematic of the 1D PTSPROWN, including three unit cells, one entrance, and one exit, where E I E R E O d n 1 n 2 n 3 l 1 l 2 l 3
Fig. 2. Dispersion curve of MgF 2 2 ), where the thick red solid line expresses the range investigated in this paper; the thin black dashed lines are all scaling lines, and the values are, respectively, ν 1 = 43 THz λ 1 = 7.00 μm ν 2 = 100 THz λ 2 = 3.0 μm ν 3 = 600 THz λ 3 = 0.5 μm ν 4 = 1500 THz λ 4 = 0.2 μm
Fig. 3. Distribution diagram of photonic modes, where white and red zones represent WPMs and SPMs, respectively. (a) Frequency range corresponds to the thick red solid line in Fig. 2 . (b) Enlarged drawing of the zone for the first extremum spontaneous PT-symmetric breaking point, whose location is near the communication wavelength, λ = 1550 nm
Fig. 4. Transmission and reflection spectra at the first extremum spontaneous PT-symmetric breaking point of the 1D ring optical waveguide network with three unit cells, where red dashed and dotted lines and black dotted lines express left- and right-incident results of PT-symmetric network, respectively; thick blue dashed lines denote the results of pure gain-material network with the refractive index n = 1.3705 − ι 2.181 × 10 − 8 n = 1.3705 + ι 2.181 × 10 − 8
Fig. 5. Intensity map of the photonic localization at the first extremum spontaneous PT-symmetric breaking point of the 1D PTSPROWN with three unit cells, where i –d –j (i , j = 1,2 , 3 i j ν 1 = 193.415780 THz ν 2 = 193.415787 THz ν 3 = 193.415793 THz
Yan Zhi, Xiangbo Yang, Jiaye Wu, Shiping Du, Peichao Cao, Dongmei Deng, Chengyi Timon Liu. Extraordinary characteristics for one-dimensional parity-time-symmetric periodic ring optical waveguide networks[J]. Photonics Research, 2018, 6(6): 06000579.
PDF全文
