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

A team at Harvard and Technical University of Vienna have invented a new tunable laser that uses a series of rings to smoothly emit many light ...

Score your smoothest skin for swimwear season with these devices that are as well-reviewed as they are convenient.

This significant step forward in the development of photonic power converters – devices that turn laser light into electrical power – could integrate laser-driven, remote powe ...

A green laser pen works according to this principle: infrared light goes through a high-quality crystalline material and generates light of half the wavelength—in this case green light.

Nick Stone discusses some of the many ways in which light can be used for diagnostic and therapeutic applications ...

Knowable Magazine reports on attosecond science, revealing how scientists study atomic interactions at unbelievable speeds to ...

Narrowband performance Altogether, the laser demonstrated an outstanding performance on a single chip – producing a clean, single wavelength with very little noise. Most importantly, the light had a ...

Considering laser hair removal? Here's everything you need to know about how it works on those with darker skin.

Power, precision, stability, and low noise The filters allow for dynamic tuning of the laser’s wavelength over a broad range, making it versatile and usable in various applications. This design ...

A small study found that the 589/1,319 nm dual wavelength laser improved facial hyperpigmentation, with patients reporting high levels of satisfaction.“Among various forms of facial ...

Read Cosmo's review of the 10 best at-home laser hair removal devices of 2025, plus dermatologist-approved tips and tricks for safe and effective results.