Metasurface applications expand in wavelength coverage (ZrO for UV, silicon for IR, TiO for visible) & substrate adaptability (curved/ biodegradable)

https://www.eurekalert.org/news-releases/1107536

"overcomes metasurface manufacturing's refractive index limitation, retains nanoimprint lithography high-speed/ low-cost, electron beam lithography performance... Hybrid Material Method: imprint nanoscale patterns on low-refractive-index resin using NIL, coat high-refractive-index thin film onto patterns using atomic layer deposition... Particle-Embedded Resin Method: mix high-refractive-index nanoparticles into NIL resin... water-soluble polyvinyl alcohol mold dissolved in water after imprinting... future: roll-to-roll"