The history of the blue-light laser diode is closely linked to that of the blue LED. Early commercial semiconductor light sources were made using semiconductor compounds gallium arsenide or ...

blue lasers became commercially available in 2001. Blue diode lasers allow for smaller pits to be used in optical discs (CD-ROMs use 780 nm pits; DVDs are 630 nm). Blue light-emitting diodes (LEDs ...

With the coming of very cheap blue laser diodes, PCB fabrication has become increasingly interesting. Instead of making a photoresist, placing it over a piece of pre-sensitized copper clad board ...

You know the type — couple of aluminum extrusions, Class 4 diode flopping around in ... when ready and idle to a blinking blue that signifies the laser is actively firing. On the right side ...

“We report on the first visible orange samarium laser directly pumped by a blue 465 nm GaN semiconductor laser diode,” wrote Alain Braud and colleagues in the abstract of the paper. “Our work ...

Researchers at Nichia Corporation have demonstrated green InGaN-based lasers grown on c-plane sapphire, with lifetimes capable of supporting commercial applications. The demonstration of green ...

It allows high resolution measurements of extremely small objects. The scanner is built with a blue-violet laser diode and projects a 10 mm long laser line at a profile resolution of 1280 measuring ...