在深度亚波长尺度上通过epsilon-near-zero cladings禁止交叉通道
Wenjie Ji1, Jie Luo2, Hongchen Chu1
1National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
埃普西隆接近零的层使得超紧的光子电路通过防止波导交叉在亚波长厚度. 这一突破克服了光子集成电路中的小型化限制.
科学领域:
- 光子学 是一个光子学.
- 材料科学 材料科学 材料科学
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 邻近的波导中的交叉声限制了光子集成电路的小型化.
- 当前的覆盖设计需要厚度约为半波长,阻碍了进一步的整合.
研究的目的:
- 在光子波导中调查epsilon-near-zero (ENZ) 覆盖物,以禁止交叉声.
- 为了证明超紧波导系统的亚波长覆盖的有效性.
主要方法:
- 全波模拟ENZ覆盖物 (同otropic和异otropic).
- 微波实验用于验证模拟结果.
- 分析电磁场行为和阻抗特征.
主要成果:
- 在深度亚波长厚度 (例如,λ0/30) 的z极化磁场模式下,ENZ涂层禁止交叉声.
- 这种效应归因于ENZ材料的分离阻抗.
- 超薄ENZ涂料的有效性经过实验验证实.
结论:
- 在光子电路中,ENZ涂层为克服小型化瓶提供了一种新的解决方案.
- 阻抗差异对于波导设计至关重要.
- 这为开发超紧光子芯片打开了道路.
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