Question

Working Of He-Ne gas laser. Please

Answer 1

Construction and operation. The gain medium of the laser, as suggested by its name, is a mixture of helium andneon gases, in approximately a 10:1 ratio, contained at low pressure in a glass envelope. ... The excited heliumatoms collide with neon atoms, exciting some of them to the state that radiates 632.8 nm.

Answer 2

It stands for helium neon laser. Its role is to is to increase the efficiency of the Lasing process.

Now,lets come to its working-

The mechanism producing light amplification and population inversion originates with the collision of energetic electrons with the helium atoms in the gas mixture.