Question

what is the role of helium in helium neon laser​

Answer 1

Answer:

for cutting...........................

Answer 2

The role of helium in helium-neon laser​ is:

• In a He-Ne laser, the Helium gas increases the efficiency of the lasing process.

• Helium is extremely valuable due to two factors:
• Direct excitation of Neon gas atoms is inefficient, while it is quite efficient for He gas atoms.

• The energy level of an excited state of the He atom (labeled E5) is extremely close to that of an excited state of the Neon atom (also labeled E5).
• The excitation of the Neon atoms takes place in two stages:
• Electrons accelerate from the cathode to the anode due to the high voltage.
• When these electrons hit with He atoms, kinetic energy is transferred to them.