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对于非互惠发射器的GAGA:对紧的磁光晶体的基因算法梯度上升优化

Hannah Gold¹, Simo Pajovic¹, Abhishek Mukherjee¹

¹Massachusetts Institute of Technology, Cambridge, USA.

Nanophotonics (Berlin, Germany)

|December 5, 2024

概括

研究人员开发了一种新的1D光子晶体,使用韦尔半金属打破热辐射极限. 这种紧的非互换装置通过控制无外部磁场的红外光吸收来提高热效率.

科学领域:

光学和光子学在光学和光子学.
凝聚物质物理学凝聚物质物理学
材料科学材料科学材料科学

背景情况:

由于电磁互惠,基尔霍夫定律对热辐射施加了基本的限制.
打破互惠性为克服工程中的热效率障碍提供了一条途径.

研究的目的:

为了设计和优化一个亚波长,1D光子晶体,以提高红外辐射吸收率的非互惠性.
设计一个超紧的吸收器,没有外部合元件,如网格或镜.

主要方法:

利用遗传算法 (GA) 为全球优化非互惠.
使用数值梯度上升 (GAGA) 算法进行本地优化.
嵌入了维尔半金属以实现内在的非互惠性,消除了对外部磁场的需求.

主要成果:

实现了一个高度非互惠的1D磁光晶体,具有超紧的八层设计.
通过吸收强度对比量化的高非互惠性得到证明.
降低了寄生性,相对吸收对s极化光的最小.

结论:

优化GAGA的韦尔半金属光子晶体有效地打破了热辐射的互惠极限.
紧的设计适用于需要高效的红外光控制的先进热应用.

关键词:

韦尔半金属是一种半金属.能源与可持续性能源与可持续性遗传算法是一种遗传算法.中等红外线中等红外线.没有互惠的非互惠.这是一个亚波长的子波长.

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