期刊:International conference on fiber optics and photonics日期:2016-01-01卷期号:: W4E.1-W4E.1被引量:1
标识
DOI:10.1364/photonics.2016.w4e.1
摘要
Dirac point supports two degenerate intrinsic PC modes. Vortex like PC mode at Dirac point can be excited and coupled in a hollow core PCF when it is helically twisted about the propagation axis.