基于 VO2 薄膜的太赫兹波段可切换宽带吸收和传感的热可重构超材料

IF 2.6 4区物理与天体物理 Q2 PHYSICS, APPLIED

International Journal of Modern Physics B Pub Date : 2023-12-12 DOI:10.1142/s0217979224504228

Liansheng Wang, D. Xia, Quanhong Fu, Yuanxu Wang, Xueyong Ding

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引用次数: 0

摘要

VO2 薄膜具有热控绝缘体-金属相变的优势。在此基础上，我们在本文中提出了一种在太赫兹波段具有可切换宽带吸收和传感功能的热可重构超材料。在低温下（[式中：见正文][式中：见正文]S/m），该超材料可以在 6.88-9[式中：见正文]太赫兹范围内实现近乎完美的吸收。当温度上升到一定程度（[式：见正文][式：见正文]S/m）时，可用于传感的吸收峰值出现在 4.08[式：见正文]太赫兹，介电常数灵敏度为 0.5[式：见正文]太赫兹/PU。该超材料具有结构简单、可切换宽带吸收/传感功能等优点，在太赫兹隐身、探测、传感等方面具有潜在的应用价值。

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A thermally reconfigurable metamaterial with switchable wideband absorption and sensing at THz band based on VO2 thin film

The VO2 thin film has the advantage of thermally controlled insulator-metal phase transition. Based on this, we presented a thermally reconfigurable metamaterial with switchable wideband absorption and sensing at THz band in this paper. At low temperature ([Formula: see text][Formula: see text]S/m), the metamaterial can realize nearly perfect absorption at the range of 6.88–9[Formula: see text]THz. When the temperature rises to a certain extent ([Formula: see text][Formula: see text]S/m), an absorption peak which can be used to sensing appears at 4.08[Formula: see text]THz with the permittivity sensitivity of 0.5[Formula: see text]THz/PU. The metamaterial has the advantages of simple structure and switchable wideband absorption/sensing functions with potential application value on terahertz stealth, detection, sensing, and so on.

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来源期刊

International Journal of Modern Physics B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.80%

发文量

417

审稿时长

3.1 months

期刊介绍： Launched in 1987, the International Journal of Modern Physics B covers the most important aspects and the latest developments in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low dimensional materials. One unique feature of this journal is its review section which contains articles with permanent research value besides the state-of-the-art research work in the relevant subject areas.