If you’ve used a diode laser engraver or cutter, you know that focus is critical. You’d think it would be relatively simple to get a sharp focus, but it isn’t that simple. [Makers Mashup] shows in a ...

Ever wonder why projector systems and televisions doesn't use laser illumination? It isn't for safety reasons, and it isn't for efficiency reasons—laser diodes have efficiencies ranging from 30 to 50 ...

Collaborators on a European project to develop a handheld photoacoustic (PA) imaging probe for early diagnosis of diseases including skin cancer and rheumatoid arthritis are gearing up for clinical ...