To understand this practically, we look at the polarization (
The molecule evolves freely during a controlled waiting time (
5. Practical Application: 2D IR and 2D Electronic Spectroscopy To understand this practically, we look at the
P(t)=χ(1)E(t)+χ(2)E(t)2+χ(3)E(t)3+…cap P open paren t close paren equals chi raised to the open paren 1 close paren power cap E open paren t close paren plus chi raised to the open paren 2 close paren power cap E open paren t close paren squared plus chi raised to the open paren 3 close paren power cap E open paren t close paren cubed plus … χ(1)chi raised to the open paren 1 close paren power
Drawing specific for a Pump-Probe or Photon Echo experiment Think of the response function as the "personality"
If you are using the book for a lab project, stop trying to derive the Green’s functions. Focus on the . Think of the response function as the "personality" of your molecule—it defines exactly how the system will wiggle when kicked by a laser.
What or nonlinear technique (e.g., pump-probe, 2D IR, SFG) are you trying to model? By applying a mathematical process called a Fourier
In a 2D experiment, you hit a sample with three laser pulses and measure the emitted signal. By applying a mathematical process called a Fourier Transform over the time delays