What Techniques are Used in Nonlinear Optics for Catalysis?
Several advanced techniques are used in nonlinear optics to study catalytic processes:
1. Second-Harmonic Generation (SHG): This is a surface-sensitive technique that can be used to investigate the surface properties of catalysts. It helps in understanding how surface atoms and molecules interact during catalytic reactions.
2. Sum-Frequency Generation (SFG): This technique combines two different frequencies of light to generate a third frequency that is the sum of the two. SFG is particularly useful for studying the interfaces and surfaces of catalysts.
3. Coherent Anti-Stokes Raman Scattering (CARS): This technique is a form of Raman spectroscopy that provides high sensitivity and spatial resolution, making it ideal for studying complex catalytic environments.
