How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

A newly developed molecular system makes possible the efficient conversion of even weak visible light from sunlight and indoor LEDs into ultraviolet light. Light-powered processes from hydrogen ...

Despite implementing various control measures, there still appears to be no clear end of the current coronavirus disease 2019 (COVID-19) pandemic. The emergence of new variants, especially the ...

Human bodies are not quite as dark as they look. A growing body of research suggests that living tissue constantly releases an ultraweak glow, a stream of photons that appears to switch off when life ...

Cracking carbon bonds is a notoriously difficult problem, but it may hold the key to generating greener, more sustainable chemicals. A Chinese research team achieved the first visible-light-promoted ...

In a new study published in Science, researchers have developed a new method for detecting infrared light by changing its frequency to a corresponding frequency in the range of visible light.

Engineers have invented a breakthrough optical phase modulator that controls visible light -- without dimming it -- with the smallest footprint and lowest power consumption. New device will improve ...