Confining light in two-dimensional slab photonic crystal waveguides with metal plates

Confining light in two-dimensional slab photonic crystal waveguides with metal plates
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用金属板将光限制在二维平板光子晶体波导中

DOI:
10.1063/1.2203511
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发表时间:
2006-05
影响因子:
4
通讯作者:
--
中科院分区:
物理与天体物理2区
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--
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当平板厚度小于半个波长时,光在二维平板光子晶体波导(PCW)中不能被强限制。利用时域有限差分法,从理论上证明了将一根PCW夹在两块平行的金属板中构成的两块金属板包裹的二维PCW(MCPCWs)可以很好地压缩垂直于PCW平面的光场。提出了一种提高多光子晶体波传输效率的方法,并进行了数值验证。我们的结果表明,多光子晶体波可以提供另一种在金属表面上制造平面PC器件的方法,用于高度集成的光学电路。
Light cannot be strongly confined in two-dimensional (2D) slab photonic crystal waveguides (PCWs) when the slab thickness is less than half a wavelength. By using the finite-difference time-domain method, we theoretically demonstrate that two metal plates clad 2D PCWs (MCPCWs) constructed by sandwiching a PCW into two parallel metal plates can well compress light field in the vertical direction of PCW plane. A method for improving the propagation efficiency of MCPCWs is suggested and demonstrated numerically. Our result implies that MCPCWs may provide another method to create planar PC devices on metallic surfaces for highly integrated optical circuits.
DOI: 10.1103/physrevb.60.5751
发表时间: 1999-08-15
期刊: PHYSICAL REVIEW B
影响因子: 3.7
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