用于电磁波放大的参数元曲面

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Optical Materials Express Pub Date : 2024-01-29 DOI:10.1364/ome.515132

Fedor V. Kovalev and Ilya V. Shadrivov

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引用次数: 0

摘要

我们研究利用元表面对电磁波进行参数放大。我们设计了一种可变电容超表面，它可以放大入射电磁波。我们分析了该系统的各种工作状态，发现仅在这种结构的一层上就能获得显著增益（超过 10 dB），而且这种增益可以通过参数调制来控制。我们研究了该系统的不稳定阈值，结果表明，一个简单的理论模型与全数值模拟的结果非常吻合。

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Parametric metasurfaces for electromagnetic wave amplification

We study parametric amplification of electromagnetic waves using metasurfaces. We design a variable capacitor-loaded metasurface that can amplify incident electromagnetic waves. We analyze various regimes of operation of the system and find that we can achieve a significant gain (over 10 dB) in just one layer of such a structure, and this gain can be controlled by parametric modulation. We study the instability threshold for this system and show that a simple theoretical model agrees well with the results of full numerical simulations.

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来源期刊

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.