Electro-Optics and Applications
|Class Hours - Lab Hours||3 - 0|
Review of basic electromagnetic principles. Introduction to the propagation of electromagnetic waves in anisotropic materials. Jones Calulus. Propagation of rays and beams, ABCD matrix method. Gaussian beams. Optical resonators, Fabry-Perot resonators, stability criterion, resonators with spherical mirrors, resonance frequencies, losses in optical resonators. Interaction of light and matter in atomic systems, spontaneous emission, stimulated emission, absorption. Optical processes (Einstein). Homogeneous and inhomogeneous spectral broadening. Lineshape function, absorption and amplification of optical signals, gain and gain saturation in homogeneous and inhomogeneous broadened materials. Atomic oscillator model. Theory of laser oscillation. Fabry-Perot laser, resonance frequencies, threshold condition, steady-state operation. Lasers of 3 and 4 energy levels. Laser power. Dynamical behavious of lasers, multi-mode operation, mode-locking, Q-switching, saturable absorbers, and amplifiers. Specific laser systems, laser pumping, laser efficiency. Ruby laser, Nd-Yag laser, Nd-glass laser, He-Ne laser, CO2 laser, Argon-Ion laser, Excimer lasers. Organic lasers. Semiconductor lasers basics. Populations and inversion in semiconductor lasers. Absorption and gain in semiconductors. Electro-optic modulation, electro-optic effect, birefringence. Electro-optic retardation, electro-optic amplitude modulators, electro-optic phase modulators, electro-optic deflection. Interaction of light and sound. Light diffraction by sound waves. Bragg acousto-optic diffraction. Laser application: Holography.