| Autor: |
Rovenská K, Ligmajer F, Idesová B, Kepič P, Liška J, Chochol J, Šikola T |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2023 Dec 18; Vol. 31 (26), pp. 43048-43056. |
| DOI: |
10.1364/OE.506069 |
| Abstrakt: |
Structural color filters use nano-sized elements to selectively transmit incident light, offering a scalable, economical, and environmentally friendly alternative to traditional pigment- and dye-based color filters. However, their structural nature makes their optical response prone to spectral shifts whenever the angle of incidence varies. We address this issue by introducing a conformal VO 2 layer onto bare aluminum structural color filters. The insulator-metal transition of VO 2 compensated the spectral shift of the filter's transmission at a 15° tilt with 80% efficiency. Unlike solutions that require adjustment of the filter's geometry, this method is versatile and suitable also for existing structural filters. Our findings also establish tunable materials in general as a possible solution for angle-dependent spectral shifts. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
