Switchable Mid-Infrared Filter Based on Thermochromic Vanadium Dioxide
Description
A thermochromic mid-infrared filter is designed, where a spectrally-selective transmittance peak exists while vanadium dioxide layers are below their transition temperature but broad opaqueness is observed below the transition temperature. This filter takes advantage of interference effects between a silicon spacer and insulating vanadium dioxide to create the transmittance peak and the drastic optical property change between insulating and metallic vanadium dioxide. The theoretical performance of the filter in energy dissipation and thermal camouflaging applications is analyzed and can be optimized by tuning the thicknesses of the thin-film layers.
Date Created
The date the item was original created (prior to any relationship with the ASU Digital Repositories.)
2021-05
Agent
- Author (aut): Chao, Jeremy
- Thesis director: Wang, Liping
- Committee member: Taylor, Sydney
- Contributor (ctb): Mechanical and Aerospace Engineering Program
- Contributor (ctb): Mechanical and Aerospace Engineering Program
- Contributor (ctb): Barrett, The Honors College