(a) Explain the construction and working of a Ruby Laser. Explain why…
Previous year question for Advanced Engineering Physics.
Question
(a) Explain the construction and working of a Ruby Laser. Explain why a ruby Laser is known as a pulsed Laser. Discuss the characteristics of Lasers.
(b) Calculate the energy difference in electron volt between two energy levels of Ne atoms of a He-Ne laser, the transition between which results in the emission of light of wavelength $6328 \text{\AA}$. Also calculate the number of photons emitted per second if the optical output is $2\text{ mW}$.
- Year: 2022
- Subject: Advanced Engineering Physics