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Related Experiment Video

Updated: Sep 21, 2025

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

Vanadium Dioxide-Based Terahertz Metamaterial Devices Switchable between Transmission and Absorption.

Haoqing Jiang¹, Yue Wang¹, Zijian Cui¹

¹Key Laboratory of Ultrafast Photoelectric Technology and Terahertz Science in Shaanxi, Xi'an University of Technology, Xi'an 710048, China.

|May 28, 2022

Summary

This study introduces a switchable terahertz metamaterial using vanadium dioxide. The device can function as a transmitter or absorber, enabling tunable terahertz applications.

Keywords:

metamaterial perfect absorption tunable metamaterials vanadium dioxide

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Last Updated: Sep 21, 2025

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Area of Science:

Metamaterials
Terahertz technology
Condensed matter physics

Background:

Conventional terahertz metamaterials have fixed functions post-fabrication, limiting their scalability and practical use.
Adjustable characteristics are crucial for advancing terahertz imaging, sensing, and communication technologies.

Purpose of the Study:

To propose and investigate a novel vanadium dioxide-based terahertz metamaterial device.
To demonstrate its switchable functionality between transmission and absorption modes.
To explore its temperature-tunable properties in the terahertz frequency range.

Main Methods:

Fabrication of a vanadium dioxide-based terahertz metamaterial device.
Experimental investigation of transmission and absorption characteristics.
Analysis of temperature-dependent properties between 20 °C and 80 °C.

Main Results:

The device exhibits switchable behavior between high transmission (>80%) and quad-band resonance absorption (peak absorbance 98.3%).
Tunable absorption with a modulation amplitude of 94.3% was achieved.
Tunable transmission with a modulation amplitude of 81% was demonstrated.

Conclusions:

The proposed vanadium dioxide metamaterial offers switchable and tunable functionalities for terahertz applications.
This advancement can significantly enhance terahertz devices for switching, modulation, and sensing.
The temperature-tunable nature promotes broader scalability and practical implementation of metamaterials.