ZnO量子点对六边形超材料的太赫兹调制

无机非金属材料(英文) Pub Date : 2019-01-31 DOI:10.4236/ojinm.2019.91001

Clarissa D. Vázquez-Colón, A. Flores-Pacheco, Janeth Alexandra García-Monge, Juan Adrián Zepeda-Galvéz, D. Shreiber, A. Ayón

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引用次数: 0

摘要

本文报道了利用紫外激发来验证六边形超材料(MM)阵列上分别包覆了两种不同半径尺寸(分别为3.00 nm (pH 10)和2.12 nm (pH 12)的光致下移ZnO量子点(QDs)的太赫兹(THz)波调制。为了表征ZnO量子点部署前后MM的行为，采用透射模式下的太赫兹时域光谱。紫外激发后，pH为12的ZnO量子点的调幅值为9.21%，pH为10的ZnO量子点的调幅值为4.55%。预计在不久的将来，主动调谐其他无源结构的性能的能力将促进太赫兹信号调制器件的扩散。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Terahertz Modulation of Hexagonal-Shaped Metamaterials Employing ZnO Quantum Dots

The utilization of UV excitation to verify the terahertz (THz) wave modulation of hexagonal-shaped metamaterial (MM) arrays coated with synthesized photoluminescent, down-shifting ZnO quantum dots (QDs) of two different radius sizes, namely, 3.00 nm (pH 10) and 2.12 nm (pH 12), respectively is reported. In order to characterize the behavior of the MM before and after deployment of the ZnO QDs, THz time domain spectroscopy in transmission mode was employed. Upon exposure to UV excitation, the collected amplitude modulation values were 9.21% for the pH 12 and 4.55% for the pH 10 ZnO QDs, respectively. It is anticipated that the ability to actively tune the performance of otherwise passive structures will promote the proliferation of THz signal modulation devices in the near future.

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无机非金属材料(英文)

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