
Sum Frequency Generation (2 pulses in). This only happens where symmetry is broken, like at the surface of water. 3rd Order:
Shaul Mukamel is a genius. His book is the complete, rigorous, unassailable truth. But it is a reference, not a manual. It is the Latin Vulgate—beautiful, perfect, and useless for ordering coffee. Sum Frequency Generation (2 pulses in)
Are the molecules "swinging" in sync with the laser? 3. Liouville Space: The "Mukamel" Shortcut Sum Frequency Generation (2 pulses in)
