Extraordinary transmission and reflection in <inline-formula> <tex-math><?CDATA ${PT}$?></tex-math><mml:math> <mml:mi mathvariant="italic">PT</mml:mi> </mml:math> <inline-graphic xmlns:xlink="https://www.w3.org/1999/xlink" xlink:href="cpb_28_10_104208_ieqn1.gif"/> </inline-formula>-symmetric two-segment-connected triangular optical waveguide networks with perfect and broken integer waveguide length ratios

Extraordinary transmission and reflection in

-symmetric two-segment-connected triangular optical waveguide networks with perfect and broken integer waveguide length ratios

Wu Jia-Ye^{1, 2}, Wu Xu-Hang¹, Yang Xiang-Bo^{1, ‡}, Li Hai-Ying¹

The frequency band structure of one-dimensional two-segment connected triangular optical waveguide networks with perfect and broken integer waveguide length ratios: (a) d 1 : d 2 = 1 : 1 ; (b) d 1 : d 2 = 1 : 0.99 ( δ = 10 − 2 ); (c) d 1 : d 2 = 1 : 2 ; (d) d 1 : d 2 = 1 : 1.99 ( δ = 10 − 2 ); (e)–(h) enlarged figures of (a)–(d).