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Tutorials

Nonlinear optics describes the behavior of light in nonlinear media, which feature a nonlinear relationship between the dielectric polarization and the electric field. In consequence, the superposition principle of classical optics is not valid any more, i.e. light beams can interact with - rather than simply pass through - each other. Nonlinear optical effects are exploited for various industrial and scientific applications such as:

• Ultrafast all-optical signal processing on fs time scales
• High-speed electro-optic modulators for data transmission
• Femtosecondlasers and frequency combs
• Direct-write 3D lithography
• Linear and nonlinear opical spectroscopy    

Contents

• Maxwell equations for the nonlinear optics
• Nonlinear effects overview
• The nonlinear optical susceptibility, second-harmonic generation
• The electro-optical effect and the electro-optical modulator, acousto-optical modulator
• Third order nonlinearities
• Nonlinear effects in semiconductors
• Nonlinear effects in optical fibers