Fine structure of polarization and optical Möbius strips topology of laser light in planar metamaterial

IF 1.4 4区 物理与天体物理 Q3 OPTICS Laser Physics Letters Pub Date : 2024-03-27 DOI:10.1088/1612-202x/ad3622
N Yu Kuznetsov, N N Potravkin, V A Makarov
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Abstract

It is shown that upon propagation of a plane linearly polarized harmonic wave normally incident on a planar nonlinear metamaterial whose basic cell consists of two rectangular silver plates with characteristic dimensions of hundreds of nanometers, there exists in the local field a circular polarization singularity line (C-line) containing two regions where their segments come to each other to such small distance that it may appear as a self-intersection in the numerical experiment. We found that optical ribbons constructed around the ordinary points of these lines have the topology of Möbius ribbons, and the ribbons constructed in the possible self-intersection region of C-lines and spanning its two segments are orientable surfaces.
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平面超材料中激光的偏振精细结构和光学莫比乌斯带拓扑结构
研究表明,当平面线性偏振谐波正常入射到平面非线性超材料(其基本单元由两块特征尺寸为数百纳米的矩形银板组成)上传播时,在局部场中存在一条圆偏振奇异线(C 线),其中包含两个区域,它们的线段相互靠近的距离很小,以至于在数值实验中可能出现自交点。我们发现,围绕这些线的普通点构建的光带具有莫比乌斯带的拓扑结构,而在 C 线可能的自交区域内构建并跨越其两段的光带是可定向曲面。
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来源期刊
Laser Physics Letters
Laser Physics Letters 物理-仪器仪表
CiteScore
3.30
自引率
11.80%
发文量
174
审稿时长
2.4 months
期刊介绍: Laser Physics Letters encompasses all aspects of laser physics sciences including, inter alia, spectroscopy, quantum electronics, quantum optics, quantum electrodynamics, nonlinear optics, atom optics, quantum computation, quantum information processing and storage, fiber optics and their applications in chemistry, biology, engineering and medicine. The full list of subject areas covered is as follows: -physics of lasers- fibre optics and fibre lasers- quantum optics and quantum information science- ultrafast optics and strong-field physics- nonlinear optics- physics of cold trapped atoms- laser methods in chemistry, biology, medicine and ecology- laser spectroscopy- novel laser materials and lasers- optics of nanomaterials- interaction of laser radiation with matter- laser interaction with solids- photonics
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