Courses in the winter semester

Contents

• Crystalline solids
• Reciprocal lattice
• X-ray diffraction
• Semiconductor materials
• Phonons
• Dielectric properties of insulators, local electric field, atomic polarizability, displacement polarization, orientation polarization, Kramers-Kronig relations
• Special effects in crystals, dielectric tensor, birefringence, index ellipsoid, linear optical effect
• Ferro-, antiferro- and ferrielectrics
• Electromechanical interaction, electrostriction, piezoelectricity, electromechanical coupling equations
• Dielectric properties of semiconductors, fundamental absorption, plasma effect, residual band, refractive index spectra
• Thermal properties of insulators, specific heat, thermal expansion, thermal conductivity; dia- and paramagnetism
• Ferro-, antiferro- and ferrimagnetism

Event: ET-IHF-25 (5 CP)

Lecture: Prof. Dr.-Ing. Wolfgang Kowalsky
Exercise: Prof. Dr.-Ing. Wolfgang Kowalsky

Contents

• Equations and inequalities with one or more variables, handling complications such as case distinctions
• Real and complex numbers (calculation of alternating current circuits)
• Vector spaces, orthogonality, norm, basis (RMS, power, SNR)
• Linear mappings and matrices, linear equation systems, LR and Gauss methods (passive linear circuits)
• Gram-Schmidt, projection (idea of Fourier analysis)
• Determinants, eigenvalues, eigenvectors, principal axis transformation
• Ordinary differential equations, systems of linear differential equations of the first order (wave equations, wave equation, resonant circuit/harmonic oscillator)

Event: ET-STDE-48 (8 CP)

Lecture: Prof. Dr.-Ing. Jörg Schöbel
Exercise: NN

Contents

• Theory of time-harmonic electromagnetic fields (Maxwell's equations, wave equations, energy conservation, uniqueness theorem, reciprocity)
• Calculation methods (vector potentials, Lorentz gauge, solution of the (in)homogeneous wave equation, source integrals, Green's function)
• Eigenwaves of waveguides, surface waves, leakage waves
• Radiation fields (Huygens principle, image theory, Fresnel and Fraunhofer approximation)
• Introduction to the numerical calculation of electromagnetic problems: (FDTD, moment method, eigenwave development)
• Exemplary implementation of solution methods in Matlab or Python
• Calculation of electromagnetic structures with commercial 3D EM software

Event: ET-IHF-49 (6 CP)

Lecture: Prof. Dr.-Ing. Jörg Schöbel
Exercise: Dr.-Ing. Carsten Monka-Ewe

Contents

• Adaptive structures, binomial and Chebyshev transformers, Bode-Fano criterion
• Filter structures
• Pin diode, microwave switch and phase shifter
• Bipolar transistor, HBT, FET, HEMT, amplifier, LNA
• Design of linear microwave circuits using commercial design software

Event: ET-IHF-34 (6 CP)

Lecture: Prof. Dr.-Ing. Jörg Schöbel
Exercise: Moritz Landwehr, Tim Buschermöhle

Contents

• The wireless channel
• Antennas
• Propagation of EM waves
• Calculation of radio links
• THz communication
• Radio systems
• Optical communication
• Silicon photonics
• Plasmonics

Event: ET-NT-61 (6 CP)

Lecture: Prof. Dr. rer. nat. Thomas Schneider
Exercise: Prof. Dr. rer. nat. Thomas Schneider

Contents

• Overview of linear optical effects
• Second-order nonlinear effects
• Third-order nonlinear effects
• Nonlinear scattering effects
• Optical telecommunications
• Nonlinear fiber effects
• Suppression of nonlinear effects
• Applications of nonlinear effects

Event: ET-IHF-47 (5 CP)

Lecture: Prof. Dr. rer. nat. Thomas Schneider
Exercise: NN

Contents

• Linear and nonlinear channels
• Spectrum-efficient modulation and coding
• Electromagnetic waves in optical fibers
• Velocities of electromagnetic waves
• Attenuation and dispersion
• Laser diodes
• Photodiodes
• Coherent receivers
• Photonic networks
• Silicon photonics
• Plasmonics

Event: ET-IHF-22 (6 CP)

Lecture: Prof. Dr. rer. nat. Thomas Schneider
Exercise: NN