Atomic, Molecular and Optical Physics

Hand-written Lecture Notes

C. Bulutay

1 May 2016

Contents 

Part-I: Atoms 3
 Hydrogen-like Ion 4
Hellmann-Feynman Theorem 12
Hartree Atomic Units 15
Relativistic Corrections 27
Angular Momentum in a Nutshell 36
Fine-Structure 56
Hyperfine Hamiltonian 61
Angular Momentum Coupling Schemes in Multi-electron Atoms 71
Atoms in an External DC Magnetic Field: Zeeman Effect 89
Spherical Tensor Operators and Wigner-Eckart Theorem 102

Part-II: Interaction with Light 117 
Radiative Coupling 118
Transition Rates 127
Resonance Broadening 133
Electric Dipole and Quadrupole, Magnetic Dipole Absorption 139
Selection Rules 142
Spontaneous vs Stimulated Emission 153
Einstein Coefficients and Rate Equations 156
Rabi Oscillations 167
Ramsey Interferometry 169
Light Shift (Dynamic Stark Effect) 175
Resonance Fluorescence and Hanle Effect 180
Optical Pumping 185

Part-III: Molecules 188
Introduction 189 Rotational Motion 191
Vibrational Motion 198
Photochemistry Nomenclature 202
Franck-Condon Principle 204
 IR-Raman Spectroscopies 211


http://www.fen.bilkent.edu.tr/~bulutay/438-538/amo.pdf