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Lern- und Qualifikationsziele
Part 1: Nonlinear response at the microscopic level
- Fundamentals of Light-Matter Interaction
- Derivation of nonlinear susceptibilities using time-dependent perturbation theory
- Quadratic and cubic susceptibility, Kerr effect
Part 2: Nonlinear macroscopic response
- Different equations used for the description of nonlinear light propagation: Slowly varying envelope approximation, weak reflection approximation etc.
- Wave mixing: Second Harmonic Generation, Difference Frequency Generation
- Phase Matchting
- Propagation in media with Kerr nonlinearity: Self-phase modulation, self-steepening, spectral broadening of the pulse
- Optical phase conjugation,
- Nonlinear Schroedinger equation and temporal solitons in Kerr media
- Self-focusing: critical power and self-focusing length
Part 3: Current frontiers:
- Laser filamentation
- Electromagnetically induced transparency and Slow light
- High harmonic generation
- Above Threshold Ionization
Voraussetzungen
Bachelor in Physik, Grundkenntnisse in Optik und Quantenmechanik
Gliederung / Themen / Inhalte
This is a theory course which includes 1) Nonlinear response of quantum systems to light at the microscopic level, 2) Nonlinear Macroscopic response and nonlinear effects such as wave mixing, Kerr effect, self-focusing, self-phase modulation, high harmonic generation, laser filamentation, temporal and spatial solitons, nonlinear spectroscopies
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