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电调可调的石墨烯等离子透镜:从麦克斯韦鱼眼透镜到伦堡透镜

Chenglong Wang, Xiang Guo, Xidong Wu

|September 15, 2023

概括

研究人员开发了一种可电调的石墨烯等离子透镜. 这种新的装置允许通过控制石墨烯来持续调节焦距.

科学领域:

塑制剂的使用方法
纳米光子学纳米光子学
材料科学材料科学材料科学

背景情况:

石墨烯具有独特的光学特性,包括可调的表面等离子体极子子 (SPP).
控制SPP对于开发可调节镜头等先进光学设备至关重要.
现有的等离子透镜往往缺乏电调性.

研究的目的:

提出和数量研究一个带有电调节焦距的石墨烯等离子透镜.
为了展示Maxwell Fisheye和Luneburg镜头功能之间的连续调整.
探索中红外区域中的应用.

主要方法:

利用SPP波量指数与石墨烯的化学潜力之间的非线性关系.
采用射线追踪方法来确定所需焦距的门电压.
使用COMSOL软件进行全波电磁模拟.

主要成果:

石墨烯等离子透镜表现出了出色的聚焦性能.
从Maxwell Fisheye到Luneburg镜头配置的连续调整性是通过调整门电压来实现的.
焦距通过电气调有效控制.

结论:

拟议的石墨烯等离子透镜为活性转化等离子元素提供了一种新的方法.
使用石墨烯的独特特性,可以实现焦距的电调性.
这项技术对中红外光学应用具有前景.

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