Scientists have created a compact spectral singlet lens that turns standard cameras into hyperspectral ones, reducing system ...

Four-wave mixing A weak optical signal (red) from a spacecraft transmitter can be amplified noise-free when it encounters two pump waves (blue and green) in a receiver on Earth. (Courtesy: Chalmers ...

Significant advancements in optoelectronics have ignited broad interests in capturing and documenting instantaneous phenomena. The ability to capture ...

This review begins by introducing the development history of optical neural networks (ONNs) and the mathematical models of optical artificial neurons. It explores the differences in constructing ONNs ...

The traditional “spectrometer + lens” setups in hyperspectral cameras involve performance tradeoffs when the system is driven ...

While dark mornings are inevitable in winter, turning the clocks back gives us an extra hour of natural light. At least 15 minutes' exposure to natural daylight, as early as possible in the day ...

Red light therapy uses light-emitting diodes (LEDs) to treat medical and cosmetic conditions. Some people use it to reduce wrinkles, scars, and acne. It can also be used for dental pain, hair loss, ...

Light therapy lamps have been found to be an effective treatment for seasonal affective disorder (SAD). Seasonal affective disorder can bring on symptoms like depression, hopelessness, and fatigue, so ...

Of course, Apple already offers a spatial computer in the form of the Vision Pro. However, this new patent hints at new methods and apparatus for emitting/projecting light including light representing ...