Tomáš Mančal / Teaching / Nonlinear Optical Spectroscopy / Non-Linear Optical Spectroscopy / Introduction to Non-Linear Optical Spectroscopy /

5 - Time-dependent Perturbation Theory, Response Functions

Time-dependent perturbation theory in the classical electric field. The three important steps towards perturbation expansion of the equations of motion, definition of the time ordered exponential and detailed discussion of its n-th order. Definition of the response function and an example in the third order. Level structure of the investigated molecular systems. Response function of a two-level system consists of eight terms.

Attachment: Lecture_04_Part_1.pdf