2009-05-07

Green laser-diode generates record power

Danish researchers unveil a high-power green laser diode to rival solid-state technologies.

A green laser-diode design that emits 1.5 W output power could replace its solid-state counterparts, say researchers at the Technical University of Denmark in the city of Lyngby. The team says that its simple laser design generates "the highest output power of green light using a frequency-doubled approach" (Optics Express 17 6532).

"Our laser system is potentially cheap, robust and efficient compared with existing technology," Ole Jensen, a researcher at the Technical University of Denmark, told optics.org. "Our laser may replace solid-state lasers for applications ranging from biomedicine to displays."

The green laser-diode is a particular challenge as no semiconductor material exists that can be used to directly produce green laser light. Until now, generating high-power green light has only been possible by using frequency-doubled solid-state lasers or external-cavity frequency doubling of complicated master-oscillator power-amplifier systems.


http://optics.org/cws/article/research/39006

2009-05-05

Laser Pointer Spy Tool

A combination of traditional tools and the technologically advanced laser, this Spy Tool is ten devices in one. A water level, flashlight, tool bits including a screwdriver, and laser beam provide versatility and capability to complete repairs or locate a target in any situation.

A constant on ring can be adjusted for a fine or broad beam focus. A pen clip and keychain attachment convert the laser for travel. Rugged and built to last, the laser is corrosion resistant.

Requires 2 AAA batteries, included.

http://scientificsonline.com/product.asp?pn=3085023&cmc=CROSS_SELL&Laser+Pointer+Spy+Tool&bhcd2=1241575752