Brief Description of Liquid Lasers

Distinction between Spontaneous and Stimulated Emission of Radiation

Characteristics, Advantages, Disadvantages and Applications of Ruby Laser

Principle, Construction and Working of the Ruby Laser

Four Level Pumping in Laser

Three level pumping in Laser

Two Level Pumping in Laser

Absorption, Spontaneous Emission and Stimulated Emission of Radiation

Einstein Coefficient Relation

Laser and properties of a Laser beam

Difference between stable and unstable resonators

Applications of Lasers