Class 2 Green Laser Pointer How to view a label?

Who invented the laser? In 1960, a physicist named Theodore Maiman designed the first laser while working at the Hughes Research Laboratory in Malibu. His laser uses a synthetic ruby rod, plated with silver at both ends, cut in such a way that the beam bounces into it, gaining brightness before coming out the other side. The device emits a narrow, bright beam of light with a wavelength of 694 nanometers. Different methods are used to produce different colored lasers. green laser pointer are created by using simple semiconductor diodes to produce light. This consists of two semiconductors placed side by side, one on top of the other. On top of that, we usually find gallium arsenide, which is an electron-deficient material called a P-type semiconductor. At the bottom, gallium arsenide and selenium, which have extra electrons, are called N-type semiconductors. The two of them are stacked in a diode to form what is called a PN junction.