...
首页> 外文期刊>Journal of the Optical Society of America, B. Optical Physics >Graphene ribbons for tunable coupling with plasmonic subwavelength cavities
【24h】

Graphene ribbons for tunable coupling with plasmonic subwavelength cavities

机译:石墨烯带可与等离子体激元亚波长腔进行可调耦合

获取原文
获取原文并翻译 | 示例
           

摘要

Since graphene supports low loss plasmonic guided modes in the infrared range, we theoretically investigate the coupling of these modes in patterned sheets with nanocavities. We calculate cavity modes and (potentially critical) coupling in filter-type circuits, with resonances observed as multiple minima in the reflection spectrum. The origin and properties of the cavity modes are fully modeled by coupled mode theory, exploring for various positions of the cavity with respect to the access waveguide. A useful resonance frequency shift is examined by modifying the graphene doping (e.g., via voltage tuning). The deep subwavelength cavity modes reach quality factors up to 42 for ribbons of 30 nm width around 5 μm wavelength. These resonances provide opportunities for ultracompact optoelectronic circuits.
机译:由于石墨烯在红外范围内支持低损耗的等离激元引导模式,因此我们从理论上研究了具有纳米腔的图案化板中这些模式的耦合。我们计算谐振腔模式和(可能是临界的)滤波器类型电路中的耦合,并在反射光谱中观察到共振为多个最小值。腔模的起源和性质通过耦合模理论进行了完全建模,探索了腔相对于接入波导的各种位置。通过修改石墨烯掺杂(例如,通过电压调谐)来检查有用的谐振频率偏移。对于波长为5μm的30 nm宽度的色带,深亚波长腔模式达到的质量因子高达42。这些共振为超紧凑型光电电路提供了机会。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号