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Flat band slow light in asymmetric photonic crystal waveguide based on microfluidic infiltration

机译:基于微流体渗透的非对称光子晶体波导中的平带慢光

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In this paper, an asymmetric photonic crystal waveguide is proposed for flat band slow light transmission. Two structural parameters of one cladding layer of the waveguide are carefully adjusted. They are the refractive index of the liquid infiltrated in the cladding on one side and the radius of the air holes in the infiltrated cladding. In such an asymmetric waveguide, we can achieve a very flat band corresponding to high group index such as 29.4 and low dispersion (10~(4)ps~(2)/km) for (DELTA)(omega)/omega velence 1.46percent. It is found that the value of n_(g)(DELTA)(omega)/omega of the proposed waveguide can reach 0.429 and this waveguide can also yield a significant increase in the group index-bandwidth product n_(g)(DELTA)(omega)/omega and improve the bandwidth.
机译:本文提出了一种非对称光子晶体波导,用于平带慢光传输。仔细地调整波导的一个包层的两个结构参数。它们是在一侧的包层中渗透的液体的折射率和在渗透的包层中的气孔的半径。在这种非对称波导中,对于Δω/ω速度为1.46%,我们可以实现一个非常平坦的频带,对应于29.4等高组指数和低色散(10〜(4)ps〜(2)/ km)。 。发现所提出的波导的n_(g)Δω/ω的值可以达到0.429,并且该波导还可以显着增加组索引带宽乘积n_(g)(Δ)( omega)/ omega,并提高带宽。

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