A Terahertz Tunable Metamaterial Reflective Polarization Converter Based On Vanadium Oxide Film

Plasmonics ◽  
2022 ◽  
Author(s):  
Fu-yuan Yu ◽  
Xiong-jun Shang ◽  
Wei Fang ◽  
Qing-qing Zhang ◽  
Yan Wu ◽  
...  
Keyword(s):  
Oxide Film ◽  
Vanadium Oxide ◽  
Polarization Converter ◽  
Tunable Metamaterial

A Tunable Hybrid Metamaterial Reflective Polarization Converter Based on Vanadium Oxide Film

Plasmonics ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 287-291 ◽  
Author(s):  
Xiaoxia Zheng ◽  
Zhongyin Xiao ◽  
Xinyan Ling
Keyword(s):  
Oxide Film ◽  
Vanadium Oxide ◽  
Polarization Converter ◽  
Hybrid Metamaterial

Optical Properties of Nano-Structure Tungsten-Doped Vanadium Oxide

2012 ◽  
Author(s):  
W. B. Cai ◽  
F. Wang ◽  
Y. P. Miao ◽  
J. Wei ◽  
K. L. Zhang
Keyword(s):  
Optical Properties ◽  
Transition Temperature ◽  
Oxide Film ◽  
Vanadium Oxide ◽  
High Vacuum ◽  
Infrared Transmission ◽  
Dc Magnetron Sputtering ◽  
Nano Structure ◽  
Before And After ◽  
Deposited Film

Tungsten-doped vanadium oxide has been proved to decrease the transition temperature, which enables vanadium oxide film to be more promising. Besides, the nano-structure can improve the properties of the film when compared with the as-deposited film. In this letter, a nano-structure tungsten-doped vanadium oxide film is proposed. Tungsten-doped vanadium oxide film was deposited on the Si (400) substrate by DC magnetron sputtering. The doping level was controlled by adjusting the sputtering time. Then the as-deposited film was annealed to form a nano-structure film at the temperature of 500 °C for 1 h in high vacuum. The morphology and crystalline structure of such films were characterized by AFM and XRD, respectively. Optical properties of the films were tested by FTIR, mainly comparing the infrared transmission before and after annealing.

A Simple and Tunable Reflective Polarization Converter Based on Vanadium Oxide Built-in Metamaterial Structure

2021 ◽  
Author(s):  
Fuyuan Yu ◽  
Cheng Wang ◽  
Xiang Liu ◽  
Jiabing Zhu ◽  
Xiaobo Shen
Keyword(s):  
Vanadium Oxide ◽  
Metamaterial Structure ◽  
Polarization Converter

Lithium insertion in sputtered vanadium oxide film☆

1992 ◽  
Vol 57 (1-2) ◽  
pp. 41-47 ◽  
Author(s):  
K WEST ◽  
B ZACHAUCHRISTIANSEN ◽  
S SKAARUP ◽  
F POULSEN
Keyword(s):  
Oxide Film ◽  
Vanadium Oxide ◽  
Lithium Insertion

The Fabrication of High Resistance-Temperature-Coefficient Vanadium Oxide Film by Magnetron Sputtering Method

2014 ◽  
Vol 609-610 ◽  
pp. 547-551
Author(s):  
Ya Qiao ◽  
Yong Shun Ling ◽  
Yuan Lu ◽  
Hua Yang
Keyword(s):  
Oxide Film ◽  
Magnetron Sputtering ◽  
Vanadium Oxide ◽  
Temperature Coefficient ◽  
Glass Substrates ◽  
Five Factors ◽  
Sputtering Power ◽  
Vanadium Metal ◽  
Four Levels ◽  
Vanadium Oxide Thin Films

Direct current (DC) magnetron sputtering method was used to deposit vanadium oxide thin films on ordinary glass substrates from a vanadium metal target and a five factors four levels orthogonal experimental method was used to find the best combination of sputtering pressure, sputtering power, oxygen/argon flow ratio, substrate temperature and deposition time for fabricating high temperature coefficient of resistance (TCR) vanadium oxide film. The results indicate that a good combination of these parameters should be 1Pa, 160W, 1.5/25, 280°C and 60 minutes. And the film fabricated using this parameters combination is mainly composed of V2O5and has a resistance range of 80.3kΩ to 40kΩ while its temperature changed from 20°C to 80°C.

Flexible vanadium oxide film for broadband transparent photodetector

2017 ◽  
Vol 110 (10) ◽  
pp. 101907 ◽  
Author(s):  
Hong-Sik Kim ◽  
Khushbu R. Chauhan ◽  
Joondong Kim ◽  
Eun Ha Choi
Keyword(s):  
Oxide Film ◽  
Vanadium Oxide

scholarly journals Spectroscopic ellipsometry analysis of vanadium oxide film in Vis-NIR and NIR-MIR

2016 ◽  
Vol 65 (12) ◽  
pp. 127201
Author(s):  
Wang Pan-Pan ◽  
Zhang Yu-Zhi ◽  
Peng Ming-Dong ◽  
Zhang Yun-Long ◽  
Wu Ling-Nan ◽  
...  
Keyword(s):  
Oxide Film ◽  
Vanadium Oxide ◽  
Spectroscopic Ellipsometry

scholarly journals ­­­­A THZ Tunable Metamaterial Reflective Polarization Converter Based Vanadium Oxide Film

2021 ◽  
Author(s):  
Fuyuan Yu ◽  
Xiongjun Shang ◽  
Wei Fang ◽  
Qingqing Zhang ◽  
Yan Wu ◽  
...  
Keyword(s):  
Vanadium Dioxide ◽  
Physical Mechanism ◽  
Polarization Conversion ◽  
Polarization Converter ◽  
Vanadium Dioxide Film ◽  
Metal Phase Transition ◽  
Current Densities ◽  
Tunable Metamaterial ◽  
Dioxide Film ◽  
Wave Incidence

Abstract In this paper a simple and tunable reflective polarization converter has been investigated numerically based on metamaterial which composes of a two-corner-cut square patch resonator with a slit embedded into Vanadium dioxide film (VO2) and reflective ground layer. All the results obtained by the CST Microwave Studio show that the polarization conversion ratio (PCR) above 90% is achieved from 2.22-5.42THz at the temperature about 25°C under the linearly and circularly polarized wave incidence normally. In addition, the influences on electromagnetic polarization properties have been demonstrated with the insulator-to-metal phase transition of the Vanadium dioxide film (VO2) film by the method of varying the temperature. At the same time, to be demonstrated, the physical mechanism of changeable polarization conversion has been discussed by the distributions of current densities. According to the results, the designed metamaterial could be applied in the area of temperature-controlled sensing, THz wireless communication, tunable polarized devices.

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