Researchers have improved upon techniques that use thin films to compress infrared light, demonstrating three advantages that make the films more useful for practical applications. The researchers have proven that the "squeezed" infrared light can propagate at least four times farther than previously shown; that the technology can "squeeze" a wider range of infrared wavelengths than previously demonstrated; and that the thin films can be integrated onto a variety of substrate materials and shapes.

Researchers have developed experimental contact lenses that use nanoparticles to convert the invisible wavelengths of near-infrared light into visible colors

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