Laser Description:
The full form of LASER is Light Amplification by Stimulated Emission of Radiation which is a kind of electromagnetic machine that can easily emit light which is electromagnetic radiation.
These electromagnetic radiation or lights are both coherent and much weaker. These electromagnetic lights are produced through a method that is optical amplification.
The LASER process was first described by Albert Einstein. The laser system was fully developed by Theodore H. Maimane in 1960. Charles Hard and Arthur Leonard Schawlow were the first to give concept for LASER which builds the basics for the LASER system.
The light amplification by stimulated emission of radiation is done by optical amplification method and it has some working principles.
The cavity that is built to reflect waves of visible, infrared or ultraviolet to reinforce one another is included in a simple laser. It is also known as a chamber in a simple laser.
This cavity can contain solids, gases or liquids. Later this material selection actually determines the output wavelength. At the end of this cavity, mirrors are located. One of these mirrors is whole reflective so that no light wave can pass through them.
Another mirror on the cavity is reflective in part and it allows 5 per cent of the light to pass through the mirror. An external source uses a pumping method to pump energy into the cavity.
Waves pass through and in between these mirrors and reflected back and forth. The length of the cavity is kept as much so the waves that are reflected can reinforce each other.
A mirror is located at the end of the cavity so the electromagnetic wave emerges in harmony with one another with a partially reflective mirror at the end of the cavity.
The output of LASER is a coherent, electric field. In a coherent beam of these electromagnetic energies, both waves have a similar phase and frequency they pass on.
LASER system has been an important innovation here are its some most known benefits –
LASER system is full of advantages however it has some disadvantages also such –
Laser types depend on their wavelengths and applications. Here are different types of LASER –
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