Lasers emit narrow, intense beams of light.
The beams can be used to drill, cut or melt materials. As you can see At the Hospital , lasers can be used to cut out diseased body tissue. Laser beams can also be used to transmit communication signals. Microlasers are miniaturized, solid-state lasers that offer much better performance that traditional lasers. Their lasers are used in many applications, such as medical instruments, color graphics and printing, advanced TV projection, telecommunications, data storage, and semi-conductor processing.