Recently, TikTokers have been raving about the skin care benefits of using at-home red light therapy devices, and studies show these gadgets might actually work to boost collagen, smooth fine ...

Photon upconversion involves a series of non-linear optical processes where the sequential ... and deeper tissue penetration due to their ability to convert near-infrared light to visible or ...

To combine two low-energy photons into one high-energy photon efficiently ... such as photodynamic cancer therapy and diagnostics that utilize near-infrared light for optical up-conversion ...