The material (gas, liquid, or solid) where population inversion occurs. 3. Properties of Laser Light
The code most likely refers to the academic course Laser Systems and Applications , a common elective offered at Dr. A.P.J. Abdul Kalam Technical University (AKTU) .
This course explores the fundamental principles of lasers and their diverse industrial and medical applications.
: The external energy supply (optical, electrical, or chemical) used to achieve population inversion.