A compact ultraviolet-B (UV-B) semiconductor laser diode emitting at 318 nm under continuous-wave operation at room-temperature. The device demonstrates stable UV-B lasing on a low-cost sapphire ...

The project utilizes a Sony Blu-Ray replacement drive assembly for the PS3 to build a Blu-Ray laser pointer device. The project utilizes a Sony Blu-Ray replacement drive assembly for the PS3 to build ...

[Robi] and [Kathy] from elecfreaks have put together a how-to article about a Laser Piano they just built. Instead of keys, the user breaks beams of laser light to trigger the sounds. Several laser ...