Zheng Yuanlin, Cao Zhuangqi, Chen Xianfeng
J Opt Soc Am A Opt Image Sci Vis. 2013 Sep 1;30(9):1901-4. doi: 10.1364/JOSAA.30.001901.
Novel conical reflection of light by a thick three-layered metal-clad optical waveguide is observed. A symmetrical metal-cladding optical waveguide is used, which exhibits extraordinary conical reflection during free-space coupling of light to the waveguide. The phenomenon is attributed to the leakage of excited ultrahigh-order guided modes and their inter- and intramode coupling interaction.
观察到一种由厚三层金属包覆光波导产生的新型光锥反射现象。使用了一种对称的金属包覆光波导，该光波导在光与光波导的自由空间耦合过程中呈现出异常的锥反射。这种现象归因于受激超高阶导模的泄漏及其模间和模内耦合相互作用。
