Knight JC, Broeng J, Birks TA, Russell PSJ
Optoelectronics Group, Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK.
Science. 1998 Nov 20;282(5393):1476-8. doi: 10.1126/science.282.5393.1476.
A fundamentally different type of optical waveguide structure is demonstrated, in which light is confined to the vicinity of a low-index region by a two-dimensional photonic band gap crystal. The waveguide consists of an extra air hole in an otherwise regular honeycomb pattern of holes running down the length of a fine silica glass fiber. Optical fibers based on this waveguide mechanism support guided modes with extraordinary properties.
展示了一种本质上不同类型的光波导结构，其中光通过二维光子带隙晶体被限制在低折射率区域附近。该波导由沿着细石英玻璃纤维长度方向排列的规则蜂窝状孔图案中的一个额外气孔组成。基于这种波导机制的光纤支持具有非凡特性的导模。
