在电磁辐射下,单间隔的太赫兹分环共振器的非线性动力学
Gervais Dolvis Leutcho1, Lyne Woodward1, François Blanchard1
1Département de Génie Électrique, École de technologie supérieure (ÉTS), Montréal, Québec H3C 1K3, Canada.
Chaos (Woodbury, N.Y.)
|October 23, 2023
概括
非线性超表面在强烈的电磁场下表现出复杂的动态,包括混乱和多稳定性. 这项研究探讨了太赫兹非线性分环共振器中的这些行为,为光子记忆器件铺平了道路.
科学领域:
- 超表面和非线性光学.
- 特拉赫兹 (THz) 技术的使用.
- 电磁波操纵是一种电磁波操纵.
背景情况:
- 超表面是控制电磁波的工程材料,用于通信,密码学和传感方面的应用.
- 非线性超表面通过操纵电磁场来提供尚未发现的功能.
- 了解非线性元表面的动态行为对于先进的设备开发至关重要.
研究的目的:
- 在太赫兹频率范围内,在强烈的电磁场下,对非线性分环共振器 (NSRR) 的动态行为进行数值研究.
- 推导出一个数学模型来检查NSRR激发性质,并确定调区域.
- 探索非线性超表面的潜力,用于诸如光子存储器设备等应用.
主要方法:
- 在强烈的电磁场下,在NSRR间隙内对电荷载体动态的数值研究.
- 导出数学模型来分析NSRR激发特性和参数空间.
- 使用分叉图和动态区域图进行分析,以研究周期性,混乱和多稳定的行为.
主要成果:
- NSRR表现出周期性和混乱的动态模式,受激发场幅度和损失参数的影响.
- 混乱行为随着非常大的损失参数而减少,周期翻倍表明过渡.
- 通过吸引力分析的盆地,通过两个稳定的状态的共存来表征的多稳定性得到证实.
结论:
- 该研究表明,在太赫兹非线性分环共振器中,复杂的动态,包括混乱和多稳定性.
- 这些发现突出了非线性元表面在开发新型光子记忆器件方面的潜力.
- 了解这些动态行为是实现高级THz应用的关键一步.
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