Physics Department, Harbin Institute of Technology, 92 Western Dazhi, Harbin 150001, China.
Opt Lett. 2010 Aug 15;35(16):2720-2. doi: 10.1364/OL.35.002720.
The effect of dielectric chirality on the polarization states and mode indices of guided modes in photonic crystal fiber (PCF) is investigated by a modified plane-wave expansion (PWE) method. Using a solid-core chiral PCF as a numerical example, we show that circular polarization is the eigenstate of the fundamental mode. Mode index divergence between right-handed circularly polarized (RCP) and left-handed circularly polarized (LCP) states is demonstrated. Chirality's effect on mode index and circular birefringence (CB) in such a PCF is found to be similar to that in bulk chiral media.
通过改进的平面波展开（PWE）方法研究了介电手性对光子晶体光纤（PCF）中导模偏振态和模式指数的影响。通过使用固芯手性 PCF 作为数值示例，我们表明圆偏振是基模的本征态。演示了右手圆偏振（RCP）和左手圆偏振（LCP）状态之间的模式指数发散。发现这种 PCF 中手性对模式指数和圆双折射（CB）的影响与在块状手性介质中的影响相似。
