Current-modulated optical properties of vanadium dioxide thin films in the phase transition region
View/ Open
Author
Zhang, Shuyan
Kats, Mikhail A.
Cui, Yanjie
Zhou, You
Yao, Yu
Ramanathan, Shriram
Capasso, Federico
Published Version
https://doi.org/10.1063/1.4902924Metadata
Show full item recordCitation
Zhang, Shuyan, Mikhail A. Kats, Yanjie Cui, You Zhou, Yu Yao, Shriram Ramanathan, and Federico Capasso. 2014. “Current-Modulated Optical Properties of Vanadium Dioxide Thin Films in the Phase Transition Region.” Applied Physics Letters 105 (21): 211104. https://doi.org/10.1063/1.4902924.Abstract
Vanadium dioxide (VO2) is a correlated electron material which undergoes an insulator-metal transition proximal to room temperature. The large change of optical properties across this phase transition is promising for tunable optical and optoelectronic devices especially at infrared frequencies. We demonstrate the ability to locally tune the optical properties on the micron scale through a simple design consisting of two electrodes patterned on a VO2 thin film. By current injection between the electrodes, a localized conducting path (metallic phase) can be formed within the insulating background. The width of the conducting path can be controlled by varying the applied current. Fourier transform infrared imaging shows that this current-modulated reflectance changes significantly over a distance on the order of the wavelength in the mid-infrared spectral range.Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAACitable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:41371713
Collections
- FAS Scholarly Articles [18176]
Contact administrator regarding this item (to report mistakes or request changes)