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Updated: Jun 19, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

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Published on: December 27, 2012

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基于石墨烯的吸收器:可调节,高度灵敏,六频

Xinmei Wang1, Xianding He1, Hua Yang2

  • 1Chengdu Aeronautic Polytechnic, School of Unmanned Aerial Vehicles Industry, Chengdu 610100, China.

Molecules (Basel, Switzerland)
|May 7, 2025
PubMed
概括

研究人员设计了一个简单的,可调节的石墨烯元材料吸收器,具有六个中红外吸收峰值. 这种极化和角度不敏感的传感器展示了多频传感应用的潜力.

关键词:
具有高灵敏度的高灵敏度没有敏感的冲击角度.没有敏感的两极化.这是一个六频吸收器.

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相关概念视频

IR Absorption Frequency: Hybridization01:21

IR Absorption Frequency: Hybridization

Hydrocarbons such as alkanes, alkenes, and alkynes show characteristic C–H stretching absorption bands. These IR stretching frequencies depend on the hybridization of the involved carbon atom and can be explained in terms of the s character of each hybridized atomic orbital.
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that stretch at a...
IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1.
The...