Enhanced All-Optical Modulation of Terahertz Waves on the Basis of Manganese Ferrite Nanoparticles,The Journal of Physical Chemistry C

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Enhanced All-Optical Modulation of Terahertz Waves on the Basis of Manganese Ferrite Nanoparticles
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2017-09-22 00:00:00 , DOI: 10.1021/acs.jpcc.7b07756
Weien Lai ₁ , Peng Huang ₂ , Beatriz Pelaz ₃ , Pablo del Pino ₃ , Qian Zhang ₂

Affiliation

We present an all-optical modulator based on manganese ferrite nanoparticles (MnFe₂O₄ NPs), which provides an enhanced attenuation of broad-band terahertz waves. A wide-band modulation of THz transmission was observed in a frequency range from 0.15 to 1.2 THz. The experimental results were assessed by simulations in the context of a band structure model of semiconductors. Our work demonstrated that coatings of MnFe₂O₄ NPs can be efficiently used to improve the performance of THz modulators based on optical modulation. This paper describes a new route to increase the surface photoconductivity of semiconductors by coating of MnFe₂O₄ NPs. This work demonstrates that the THz modulator based on MnFe₂O₄ NPs can significantly boost the overall performance of THz communication systems, and MnFe₂O₄ NPs may offer some useful solutions for future THz devices.

中文翻译：

基于锰铁氧体纳米粒子的太赫兹波增强全光调制

我们提出了一种基于锰铁氧体纳米粒子（MnFe ₂ O ₄ NPs）的全光调制器，该调制器可增强宽带太赫兹波的衰减。在0.15至1.2 THz的频率范围内观察到了THz传输的宽带调制。在半导体的能带结构模型的背景下，通过仿真评估了实验结果。我们的工作表明，MnFe ₂ O ₄ NP涂层可以有效地用于改善基于光调制的THz调制器的性能。本文介绍了一种通过涂覆MnFe ₂ O ₄来提高半导体表面光电导性的新途径NP。这项工作表明，基于MnFe ₂ O ₄ NPs的THz调制器可以显着提高THz通信系统的整体性能，而MnFe ₂ O ₄ NPs可以为未来的THz器件提供一些有用的解决方案。

更新日期：2017-09-22

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