Design and analysis of slow light regime in silicon carbide 2D photonic crystal waveguides

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• 作者：Elyar Pourali ; Mohammad Kazem Moravvej-Farshi ; Majid Ebnali-Heidari
• 关键词：Dispersive material ; Dispersion engineering ; Photonic crystal waveguides ; Silicon carbide ; Slow light regime
• 刊名：Infrared Physics and Technology
• 出版年：March, 2014
• 年：2014
• 卷：63
• 期：Complete
• 页码：10-16
• 全文大小：2729 K

文摘

We theoretically demonstrate the slow light capabilities of 2D silicon carbide based photonic crystal W1 waveguides (SiC-PhC-W1Ws) with numerical simulations. The PhC is assumed to be created by devising air-holes with hexagonal lattice in a standard SiC substrate having oscillator type ordinary refractive index. Numerical simulations show that by means of selective optofluidic infiltration and varying the air-holes radii, SiC-PhC-W1Ws are capable of slowing light down by about 473 times while their group velocity dispersions are tailored to near zero values. Our numerical study also suggests the possibility of slow-light guiding with n_g 脳 螖位/位_c values as high as 0.42 in SiC-PhC-W1Ws at optical telecommunications wavelengths.