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Hamamatsu Photonics K.K. has successfully oscillated the world’s first AlGaN (aluminum gallium nitride) laser diode to emit ultraviolet light at 342 nanometers*, the shortest wavelength for an electrically-driven laser diode. This breakthrough will advance the practical application of UV laser diodes in a variety of fields, including biology and environmental science. Laser diodes in general are convenient, compact devices which have low power consumption and long lifetimes, and are environmentally friendly.

Hamamatsu’s achievement will be covered in an article in the September issue of Nature Photonics, a specialty publication of U.K. scientific journal Nature. From July 27 London time, this article will be available in the “advance online publication” section of the Nature Photonics website (see link below).

Emission of light by the shortest-wavelength UV laser diode

http://www.nature.com/nphoton/journal/vaop/ncurrent/index.html