However, ironically for him, he is alarmed that many green laser pointers are more powerful than they are supposed to be. Sure, you often want a powerful laser, but if you think a laser is safe ...

However, ironically for him, he is alarmed that many green laser pointers are more powerful than they are supposed to be. Sure, you often want a powerful laser, but if you think a laser is safe ...

Could a practical green laser diode finally be within sight? The latest research looks optimistic. Researchers at the Japanese company Nichia have fabricated an InGaN semiconductor laser diode ...