Articles sur Lasers

Affichage de 21 à 36 de 36 articles

Green lasers glowing within cells. Matjaž Humar and Seok Hyun Yun

We transformed living cells into tiny lasers

Using fluorescent dye, researchers figured out how to turn cells into lasers – with applications for cell tagging and tracking as well as medical diagnoses and therapies.
Light of every hue. davidd

Light technologies illuminate global challenges

During these dark winter months, spare a thought for artificial lights. From strings of lights adding holiday cheer to artificial sunlamps alleviating seasonal affective disorder, they brighten our days…
That’s another way of looking at things. Antony Pidduck

3D models can bring quicker, greener, cheaper construction

The latest advance used to help design new buildings and conserve our historic ones is a range of 3D modelling technologies. Using 3D models at the design stage improves better information to reduce production…
Feel the lift from the light. Flickr/Louish Pixel

Levitation is just part of the power of pushy light

Most of the time we take light for granted. It arrives with the sunrise everyday and we turn it on with a flick of a switch every night. It appears to be ephemeral and benign to us humans but there is…

VIDEO: How laser tattoo removal works

Professor Rodney Sinclair explains how advances in laser tattoo removal technology have enabled the relatively safe and easy removal of tattoos. But it is a medical procedure, and as laser dermatologist…
Diamonds are the first material to have single atoms removed by a laser. Africa Studio

Using lasers to cut a diamond apart atom by atom

One of great challenges of the 21st century has been to develop ways to manipulate matter on smaller and smaller dimensions. As the great physicist Richard Feynman noted in his famous 1959 lecture, “There’s…
Lasers remove different coloured ink by generating a different frequency of light. Sheila Blige

Explainer: how are tattoos removed?

You’re probably familiar with how tattooing works: coloured ink is deposited via needles into the dermal layer of skin. But you’re probably less familiar with the process for having it removed: laser therapy…
A copper strip bending to the forces of pressure: knowing how and why will help build better materials. knitsteel

Elastic to plastic: high-energy lasers warp copper – permanently

The exact pressure that permanently changes copper crystals has been pinpointed, according to a study released today. The…

Les contributeurs les plus fréquents

Plus