Nonlinear Optics: Applications and Energy Diagrams

This lecture explores a variety of nonlinear processes in optics, such as frequency-mixing processes like second-harmonic generation, third-harmonic generation, and high-harmonic generation. It delves into concepts like sum-frequency generation, difference-frequency generation, and optical parametric amplification. The lecture also covers nonlinear light-matter interactions, optical Kerr effect, self-focusing, Kerr-lens modelocking, and optical solitons. Furthermore, it discusses processes like cross-phase modulation, four-wave mixing, and chaos in optical systems. In the context of quantum technologies, the lecture explains quantum coherent frequency conversion and the generation of states of light with non-classical correlations. It also touches upon applications in spectroscopy, microscopy, and quantum technologies.