Discover how researchers are using Tamm plasmonic photonic crystals and antimony trisulfide to create reconfigurable color ...

Optical spectrometers are versatile instruments that can produce light and measure its properties over specific portions of the electromagnetic spectrum. These instruments can have various ...

Researchers at the Dalian University of Technology and the University of Hong Kong have developed a novel method for creating dynamically ...

Imagine a future where you could see in complete darkness — not through bulky night vision goggles, but with nothing more ...

The color red, for example, resides at one end of the visible spectrum and is the result of light with a wavelength of 620 to 750 nm.

Red light therapy, for example (which is on the visible light spectrum), works mostly at the dermis and epidermis of the skin.

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

According to Schlesinger, iron oxide used in tinted sunscreens can protect a large portion of the visible light spectrum, all the way up to 700 nm, including blue light.

Red light sits at the ‘long end’ of the visible light spectrum, with wavelengths of 600 nm to 700 nm (compared with violet, which sits at the lower limit of 400 nm).

But the problem is that the current definition of UV-A 315-400 nm ultraviolet light includes a critical part of the healthy light spectrum: 360-400 nm deep visible violet light.