Fabrication Of Complex Optical Elements From Liquids May 2026

By submerging a polymer "liquid lens" into a second, density-matched liquid, the effects of gravity are neutralized. This allows surface tension to naturally shape the liquid into a perfectly smooth, mathematically precise curve.

A key feature of this fabrication method—often referred to as —is its ability to create high-quality optical components without mechanical processing (like grinding or polishing). Fabrication of complex optical elements from liquids

Because the shape is formed by molecular forces rather than mechanical cutting, the resulting surfaces have a smoothness (roughness) of less than 1 nanometer, comparable to or better than the most expensive traditionally polished optics. By submerging a polymer "liquid lens" into a