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在混合的等离子分布的布拉格反射器结构中的非分散的法诺共振
Shuangshuang Wang1,2, Huatian Hu3, Xiaoze Liu1,4
1Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
我们在布拉格反射器上的金纳米粒子中发现了法诺共振,由合的等离子体和布拉格模式驱动. 这种效果是独立于角度和可调节的,为新的纳米光子设备提供了潜力.
科学领域:
- 纳米光子学 纳米光子学
- 塑制剂是一种塑制剂.
- 超材料是指一种超材料.
背景情况:
- 扇子共振是由宽和窄共振之间的干扰引起的.
- 将等离子共振与光子晶体模式相合,可能导致 Fano 干扰.
- 分布布拉格反射器 (DBR) 提供可调节的光子带结构.
研究的目的:
- 在分布式布拉格反射器 (Au NPoDBRs) 上研究金纳米颗粒中的法诺共振.
- 分析观察到的法诺干扰的潜在合机制和依赖关系.
- 探索这个现象对纳米光子设备应用的潜力.
主要方法:
- 制造Au NPoDBRs结构的工程.
- 使用角度分辨率光谱学的光学表征.
- 数字模拟以建模光物相互作用.
主要成果:
- 在Au NPoDBRs中观察到没有强角依赖的法诺共振.
- 识别三种模式的合:纳米粒子等离子体共振,分散的布拉格模式和非分散的布拉格模式.
- 证明了Fano干扰对顶层厚度的高可调性.
结论:
- 观察到的法诺共振是来自不同模式之间的等离子合和强合的结果.
- 独立于角度的性质和可调性使得Au NPoDBRs成为分散工程的前景.
- 这项工作为设计具有定制光学响应的新型纳米光子设备开辟了道路.
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