Two-step hydrothermal growth of a thin film of vanadium dioxide on sapphire with large terahertz modulation depth

2019 ◽  
Vol 125 (16) ◽  
pp. 163104 ◽  
Author(s):  
Rui-ke Wang ◽  
Hai Wang ◽  
Zhi-qiang An ◽  
Jing-suo He ◽  
Cun-lin Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Vanadium Dioxide ◽  
Modulation Depth ◽  
Hydrothermal Growth

scholarly journals Tunable Infrared Optical Switch Based on Vanadium Dioxide

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2988
Author(s):  
Qi Wang ◽  
Shijie Zhang ◽  
Chen Wang ◽  
Rui Li ◽  
Tianhan Cai ◽  
...  
Keyword(s):  
Thin Film ◽  
Vanadium Dioxide ◽  
Optical Switching ◽  
Modulation Depth ◽  
Optical Switch ◽  
Extinction Ratio ◽  
Infrared Region ◽  
Metallic Phase ◽  
Ultrafast Switching ◽  
Difference Time

A tunable infrared optical switch based on a plasmonic structure consisting of aluminum nanoarrays with a thin film of vanadium dioxide is proposed. This optical switch can realize arbitrary wavelength-selective optical switching in the mid-infrared region by altering the radii of the aluminum nanoarrays. Furthermore, since vanadium dioxide transforms from its low-temperature insulator phase to a high-temperature metallic phase when heated or applied voltage, the optical switch can achieve two-way switching of its “ON” and “OFF” modes. Finite-difference time-domain software is used to simulate the performance of the proposed infrared optical switch. Simulation results show that the switch offers excellent optical performances, that the modulation depth can reach up to 99.4%, and that the extinction ratio exceeds −22.16 dB. In addition, the phase transition time of vanadium dioxide is on the femtosecond scale, which means that this optical switch based on a vanadium dioxide thin film can be used for ultrafast switching.

Pressure and Temperature Dependence of Field-Induced Oscillation in Two-Terminal Device Based on Vanadium Dioxide Thin Film

2019 ◽  
Vol 19 (3) ◽  
pp. 1500-1505
Author(s):  
Min Seok Kim ◽  
Jihoon Kim ◽  
Sungwook Choi ◽  
Seul-Lee Lee ◽  
Sun Jae Jung ◽  
...  
Keyword(s):  
Thin Film ◽  
Temperature Dependence ◽  
Vanadium Dioxide ◽  
Terminal Device

scholarly journals Design of an On-Chip Plasmonic Modulator Based on Hybrid Orthogonal Junctions Using Vanadium Dioxide

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2507
Author(s):  
Gregory Beti Tanyi ◽  
Miao Sun ◽  
Christina Lim ◽  
Ranjith Rajasekharan Unnithan
Keyword(s):  
Vanadium Dioxide ◽  
Modulation Depth ◽  
Large Change ◽  
Silicon On Insulator ◽  
Nanometer Scale ◽  
High Modulation ◽  
Orthogonal Geometry ◽  
Potential Applications ◽  
On Chip ◽  
Insertion Losses

We present the design of a plasmonic modulator based on hybrid orthogonal silver junctions using vanadium dioxide as the modulating material on a silicon-on-insulator. The modulator has an ultra-compact footprint of 1.8 μm × 1 μm with a 100 nm × 100 nm modulating section based on the hybrid orthogonal geometry. The modulator takes advantage of the large change in the refractive index of vanadium dioxide during its phase transition to achieve a high modulation depth of 46.89 dB/μm. The simulated device has potential applications in the development of next generation high frequency photonic modulators for optical communications which require nanometer scale footprints, large modulation depth and small insertion losses.

Nanopattern enabled terahertz all-optical switching on vanadium dioxide thin film

2011 ◽  
Vol 98 (7) ◽  
pp. 071105 ◽  
Author(s):  
S. B. Choi ◽  
J. S. Kyoung ◽  
H. S. Kim ◽  
H. R. Park ◽  
D. J. Park ◽  
...  
Keyword(s):  
Thin Film ◽  
Vanadium Dioxide ◽  
Optical Switching ◽  
All Optical ◽  
All Optical Switching

Sculptured thin film vanadium dioxide thermochromic coatings grown by oblique angle deposition: investigation of transmittance response and modulation enhancement by experiment and theoretical modeling

2021 ◽  
Vol 9 (38) ◽  
pp. 13304-13320
Author(s):  
Saranya Bhupathi ◽  
Mohammad Abutoama ◽  
Yi Long ◽  
Ibrahim Abdulhalim
Keyword(s):  
Thin Film ◽  
Heat Treatment ◽  
Vanadium Dioxide ◽  
Theoretical Modeling ◽  
Optical Measurements ◽  
Oblique Angle Deposition ◽  
Oblique Angle ◽  
Smart Window ◽  
Sputtering Deposition ◽  
Angle Deposition

Fabrication of STF VO2 by an industrially viable sputtering deposition following heat-treatment, and optical measurements for thermochromic smart window application.

Research Progress of Vanadium Dioxide Thin Film Fabricated by Pulsed Laser Deposition

2009 ◽  
Vol 46 (6) ◽  
pp. 49-53
Author(s):  
王海方 Wang Haifang ◽  
李毅 Li Yi ◽  
蒋群杰 Jiang Qunjie ◽  
俞晓静 Yu Xiaojing ◽  
胡双双 Hu Shuangshuang ◽  
...  
Keyword(s):  
Thin Film ◽  
Pulsed Laser Deposition ◽  
Vanadium Dioxide ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Research Progress

scholarly journals On the Optical Properties of Thin‐Film Vanadium Dioxide from the Visible to the Far Infrared

2019 ◽  
Vol 531 (10) ◽  
pp. 1900188 ◽  
Author(s):  
Chenghao Wan ◽  
Zhen Zhang ◽  
David Woolf ◽  
Colin M. Hessel ◽  
Jura Rensberg ◽  
...  
Keyword(s):  
Thin Film ◽  
Optical Properties ◽  
Vanadium Dioxide ◽  
Far Infrared
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