what is the role of helium in helium neon laser
Answers
Answered by
1
Answer:
for cutting...........................
Answered by
1
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.
Similar questions