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48318 Advanced Field Theory
Danish title: Videregående feltteori
Language: English Credit points: 7,5
Type: Ph.D.-level, Open University
Language: English

Previous course: C4830
No credit points with: C4830
Prerequisite: 48110/10007/10008/
Recommended semester: 6th semester or later
Scope and form: 2 modules of lectures per week
Examination: Oral exam (13-scale)
Contact person: Jørgen Appel-Hansen, Building 348, Tel. +45 4525 3812, email jah@oersted.dtu.dk, http://www.emi.dtu.dk

Department: Department of Electromagnetic Systems
Aim: To give the students an advanced introduction to electromagnetic field theory that will enable the student to keep up will specialized literature and to solve complex problems. Principles and techniques are treated within exact and asymptotic electromagnetic theory. In particular, the application of the Fourier transformation of fields from reflector antennas and fields in optoelectronics.
Contents: Fermat's principle. Canonical problems. Babinet's principle. Field around a current layer. Equivalence principles. The general scattering problem. Physical optics. Diffraction theories. Calculation of fields using Fourier transformation. Dyadic Green's function. Expansions in elementary waves. Gratings. Gaussian beams. Exact calculations. Time-domain techniques. Noise in optical amplifiers on photon- and field basis.