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首页> 外文期刊>Optics Letters >Submicrometer radius and highly confined plasmonic ring resonator filters based on hybrid metal-oxide-semiconductor waveguide
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Submicrometer radius and highly confined plasmonic ring resonator filters based on hybrid metal-oxide-semiconductor waveguide

机译：基于混合金属氧化物半导体波导的亚微米半径和高度受限的等离子体环谐振器滤波器

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摘要

We numerically report the submicrometer radius (0.5 μm) and high confinement (mode area ～λ~2/1200) plasmonic ring resonators for both all-pass and add-drop filters based on the hybrid metal-oxide-semiconductor (Ag-SiO_2-Si) waveguide platform. The best tradeoff between the propagation length and the confinement of this hybrid plasmonic waveguide platform is also discussed and compared to the dielectric-loaded plasmonic waveguide counterpart. We show that the ring resonator all-pass filter features an extinction ratio as high as 23 dB with a transmission loss of 1.5 dB, and a wide free spectral range of 168 nm with a bandwidth of 14 nm. Moreover, the demonstrated add-drop filter achieves an extinction ratio larger than 12 dB with a channel isolation between the through and drop channels of 13.5 dB at the resonant wavelength. These demonstrated plasmonic devices reveal as potential building blocks for future nanoscale electronic-photonic integrated circuits.
机译：我们用数值方法报告了基于混合金属氧化物半导体（Ag-SiO_2- Si）波导平台。还讨论了此混合等离子体波导管平台的传播长度与限制之间的最佳折衷，并将其与介质加载的等离子体波导管的对应部分进行了比较。我们表明，环形谐振器全通滤波器的消光比高达23 dB，传输损耗为1.5 dB，自由光谱范围为168 nm，带宽为14 nm。此外，演示的分插滤波器实现了大于12 dB的消光比，在谐振波长处直通和分插通道之间的通道隔离为13.5 dB。这些已证明的等离激元器件显示为未来纳米级电子-光子集成电路的潜在组成部分。

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