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So this is my situation, now I want to decide which class to take between the two:

ECE 455 Optical Electronics

Subject Area: Microelectronics and Quantum Electronics

Course Prerequisites: Credit in ECE 450 or PHYS 436 (this is the second semester of E&M with Griffiths' book)

Description: Overview of laser and optical systems with emphasis on optical beams and resonant laser cavities; characteristics of typical lasers (gas, solid state and semiconductor); and application of optical devices.

Goals: To introduce the student to the generation, propagation, and detection of optical electromagnetic waves.

Topics:

* Optical beams and cavities: Review of electromagnetics, ray tracing, ABCD matrix, stable cavities, Gaussian beams, resonant cavities

* Interaction of Photons and Matter: Blackbody radiation, Einstein coefficients, lineshape functions, gain, absorption, saturation

* Basic Laser Theory: Threshold gain, laser oscillation, steady-state and dynamic systems, Q-switching, mode-locking

* Laser Systems: 3- and 4-level lasers, rare-earth-ion lasers, broad-band-gain, tunable lasers, gas discharge lasers

* Nonlinear processes and harmonic generation

* Semiconductor lasers: Review of semiconductor fundamentals, absorption, gain, oscillation, optical modes

* Final project presentation

Texts: J. T. Verdeyen, Laser Electronics, 3rd ed., Prentice-Hall.

References W. Silfvast, Laser Fundamentals

A. Yariv, Optical Electronics

PHYS 580 Quantum Mechanics I , this is first year graduate level course on quantum mechancis

Second course in quantum mechanics for students with a good background in wave mechanics and atomic and molecular structure. Operators, state vectors, and the formal structure of quantum theory; operator treatments of simple systems; angular momentum and vector addition coefficients; stationary state perturbation theory; introduction to scattering theory for particles without spin, partial wave analysis, and Born approximation; examples taken from atomic, nuclear, and elementary particle physics. Prerequisite: PHYS 485 or PHYS 487.