基于铁和半导体的元材料组成的超晶体中等频率表面拓的多样性
1Strategy and Innovations Department, Samsung R&D Institute Ukraine, Kyiv, Ukraine. i.fedorin@samsung.com.
Scientific reports
|September 26, 2023
概括
这项研究探讨了使用磁场控制异型超级网格中的拓过渡. 研究人员发现,外部场可以改变同频面,使可调节的光子特性成为可能.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 光子学 是一个光子学.
- 材料科学是一种材料科学.
背景情况:
- 控制人工光子结构中同频面的拓状态是一个关键的研究领域.
- 不同类型的超级网格具有独特的电磁性质.
- 外界场可以影响元材料中的波传播.
研究的目的:
- 为了研究铁电流和半导体电流超材料超网中的同频面的拓过渡和奇点状态.
- 分析外部磁场对横向电 (TE) 和横向磁 (TM) 波等频面拓学的影响.
- 探索超级晶格表现为超晶体的条件以及如何调整其属性.
主要方法:
- 在长波近似中使用有效的允许性和透性来建模材料特性.
- 在外部磁场下分析铁-介电元材料中的 TE 波和半导体-介电元材料中的 TM 波的行为.
- 研究从圆形到高波形同频面的拓过渡.
主要成果:
- 一个外部磁场诱导异频表面的过渡从封闭的圆体到开放的超波体,无论是TE和TM波.
- 超级晶格可以作为一个超晶体,当其组成的元材料表现出高压的同频率表面状态.
- 同频率的表面特性可以通过外部磁场,填充因子和频率来调整.
- TE和TM同频面的交叉导致退化和像形折射这样的现象.
结论:
- 异型超级网中的同频面的拓状态可以通过外部磁场和材料参数有效控制.
- 在特定条件下,研究的超级晶格表现为具有可调节性质的超晶体.
- TE和TM波同频面的交集提供了观察新型光学现象的机会.
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