News tagged with laser

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Laser physics upside down

At the Vienna University of Technology a system of coupled lasers has been created which exhibits truly paradoxical behaviour: An increase in energy supply switches the lasers off, reducing the energy can ...

Jul 15, 2014
4.8 / 5 (4) 1

Water window imaging opportunity

Ever heard of the water window? It consists of radiations in the 3.3 to 4.4 nanometre range, which are not absorbed by the water in biological tissues. New theoretical findings show that it is possible to ...

Aug 21, 2014
3.5 / 5 (4) 0

Laser-powered farewell to Moon mission

(Phys.org) —Just before NASA's latest Moon mission ended last week, an ESA telescope received laser signals from the spacecraft, achieving data speeds like those used by many to watch movies at home via ...

Apr 28, 2014
4.6 / 5 (5) 0

Laser-induced damage in focus

The transformation of infrared light to a different wavelength, such as visible light, is important in many applications. Some of the most efficient semiconductor lasers operate in the infrared region of ...

Jan 17, 2014
5 / 5 (1) 0