Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and Technical University of ...

A team at Harvard and Vienna University of Technology have invented a new tunable laser that uses a series of rings to smoothly emit many light wavelengths from a single chip. The laser could replace ...

Star-favored, board-certified aesthetics physician Dr. Glenicia Nosworthy explains how to choose the right high-tech tool for ...

Alcon has inked a deal to acquire LumiThera and its light-based therapy for dry age-related macular degeneration, which obtained a groundbreaking FDA clearance late last year. | LumiThera's approach ...

An attosecond—or 0.000000000000000001 second—is no time at all for a person. That is not so for electrons, atoms and molecules, and laser-wielding scientists are revealing the action ...

Moonlight's colour varies. It depends on Earth's atmosphere. The Moon reflects sunlight. Atmospheric particles scatter light.

What color is moonlight typically, and what other colors can moonlight look like from our perspective on Earth?

This wand emits four different wavelengths of red light. The wavelength is what determines light’s color, and these LEDs are amber (605-nanometer wavelength), light red (630 nm), deep red (680 ...

We expect to extend this optical inspection method to 65 nm design rule and beyond by an improvement of resolving power using shorter wavelengths. To achieve this improvement, we evaluated inspection ...

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...