Introduction
The term LASER is an abbreviation for “Light Amplification by Stimulated Emission of Radiation”. These are special devices that produce light that can be directed towards an object, and is monochromatic and coherent. These special characteristics are used in designing a laser device that is widely used for industrial purpose as well as in medicine . In the US, about 500,000 to 700,000 health care workers are involved in the use of medical lasers .
History and Progress of Lasers
The history of lasers dates back to 1916, when Albert Einstein discussed the possibility of stimulating radiant energy based on Niels Bohr’s theory that ...
