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与亚波长网格的异型泄漏式扰动使零交叉通话成为可能

Md Faiyaz Kabir¹, Md Borhan Mia¹, Ishtiaque Ahmed²

¹Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX, 79409, USA.

Light, science & applications

|June 2, 2023

概括

研究人员使用亚波长网格 (SWGs) 在光子电路中展示了零交叉声. 在SWG超材料中,这种新的漏电振荡方法抑制了电磁合,使光学设备的集成更加密集.

科学领域:

光子学和元材料研究
电磁合器电磁合器

背景情况:

通过 evanescent 场或辐射波的电磁合对于光学信号传输至关重要,但限制了光子电路集成密度.
漏电模式,将两种场型结合起来,加剧了合,阻碍了密集集成.

研究的目的:

展示一种新的方法,在光子电路中实现零交叉通话.
探索亚波长格子 (SWG) 超材料对于先进的电磁合控制的潜力.

主要方法:

利用SWG元材料中带有异性质扰动的漏电振荡.
实验展示了距离很近的相同漏水的SWG波导之间的合.

主要成果:

通过在SWG中以不同方向抵消合系数来实现完全零交叉.
与传统的条形波导相比,压低了约40dB的交叉声.
由于交叉声压制,有效合长度增加了100倍.

结论:

漏电式SWG为电磁合提供了一种新的方法,可以实现前所未有的低交叉声.
这种方法有效地抑制了横向磁性 (TM) 模式交声,这是一个重大挑战.
这些发现适用于各种光谱模式和通用光子设备,为更密集的集成铺平了道路.

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Standing Waves in a Cavity

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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by: