Terahercų emisijos spektroskopija pavidalų panašumui tirti: Ukrainos ir Lietuvos simbolių nagrinėjimas

IF 0.3 4区 物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY Lithuanian Journal of Physics Pub Date : 2023-11-26 DOI:10.3952/physics.2023.63.3.7
B. Škėlaitė, V. Jakštas, M. Treideris, A. Bičiūnas, K. Ikamas, R. Butkutė, I. Grigelionis
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Abstract

In this paper, the thermal emission from the n-GaAs/GaAs structure equipped with the Ti/Au metasurface is being investigated in the terahertz region. The metacell shape was chosen to be of heraldic origin, that is either the Ukrainian Trident or the Lithuanian Columns of Gediminids. The experiments were performed using far-infrared Fourier spectroscopy, where the heated sample served as the source of THz radiation. The optical properties of such structures were simulated using the rigorous coupled wave analysis method in order to explain the origin of experimentally observed spectral features. The deconstruction of the simulated spectra was also performed by simulating the properties of simplified metacells which constitute the metacells of the heraldic symbols investigated here. The spectral analysis suggests the similarity between the investigated symbols, which is also reviewed from the historical point of view.
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太赫兹发射光谱分析形状的相似性:乌克兰和立陶宛符号研究
本文研究了配备钛/金元表面的 n-GaAs/GaAs 结构在太赫兹区域的热辐射。元胞的形状被选择为纹章形状,即乌克兰的三叉戟或立陶宛的格迪米尼斯柱。实验采用远红外傅立叶光谱法,将加热的样品作为太赫兹辐射源。使用严格的耦合波分析方法模拟了此类结构的光学特性,以解释实验观察到的光谱特征的来源。通过模拟构成本文所研究的纹章符号元胞的简化元胞的特性,还对模拟光谱进行了解构。光谱分析表明了所研究符号之间的相似性,并从历史角度对其进行了回顾。
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来源期刊
Lithuanian Journal of Physics
Lithuanian Journal of Physics 物理-物理:综合
CiteScore
0.90
自引率
16.70%
发文量
21
审稿时长
>12 weeks
期刊介绍: The main aim of the Lithuanian Journal of Physics is to reflect the most recent advances in various fields of theoretical, experimental, and applied physics, including: mathematical and computational physics; subatomic physics; atoms and molecules; chemical physics; electrodynamics and wave processes; nonlinear and coherent optics; spectroscopy.
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