Radiation Theory

Syllabus

• Absorption and emission of the light;
• Einstein theory of spontaneous and stimulated emission, Einstein coefficients;
• Quantum electrodynamics approach to emission and absorption;
• Line broadening: natural broadening, pressure broadening, Doppler broadening;
• Radiation transfer,
• Beer-Lambert law for absorption and absorption coefficient and small signal gain;
• Rate equations and conditions for population inversion;
• gain saturation;
• laser: amplifier and oscillator; Q-switching;
• light scattering.

Sources:

1. Yariv A.: Introduction to Optical Electronics, 4 ed. Oxford UP 1991, TK7874.M525
2. Corney A. Atomic and Laser Spectroscopy, Oxford UP 1987, QC 688.C67