Resonance and Relaxation in Light Scattering

摘要: Time dependent description of resonance Raman scattering is performed for a general system, by density matrix reformulation damping theory originally used fluorescence atom. Radiative in the intermediate states can be described terms “damping operator” realistic situations. In large ergodic systems, reduces to luminescence if relaxation time within excited much shorter than radiative lifetime. typical case, resolved emission spectra consist various stages (i) complex where absorption and are inseparable, (ii) dynamical then (iii) kinetic relaxations giving rise hot luminescence, which finally converges (iv) ordinary from relaxed states. Hot does not appear motionally narrowed line. The interpretation depends also on method observation.