Lasers- Chapter 4: Atomic Models (19ScPhyU102)
Channel: Sanket Gogte
Date: 26/01/2022

00:00 Review and Lecture Plan
03:51 Population Inversion
10:19 Optical Pumping
14:13 Metastable States
16:28 Three Level Pumping Scheme
21:47 Four Level Pumping Scheme
25:25 Summary