Introduction: Einstein A and B coefficients, Time dependent perturbation, transition dipole moment, Rabi oscillations, Spectral line width. Atomic Spectroscopy: H-like atom, Fine structure, spin-orbit coupling, Atomic terms, Selection rules. Symmetry and Group Theory: Matrix representation of groups, Reducible and Irreducible representation, Great orthogonality theorem, Character table. Vibrational and Rotational Spectroscopy: Rotations and vibrations of diatomic and polyatomic molecules, Normal modes and symmetry. Raman Spectroscopy: Polarizability, Classical and quantum description, Resonance Raman. Molecular Electronic Spectroscopy: Born-Oppenheimer approximation, Molecular terms, Franck Condon principle, Dissociation and predissociation. Emission Spectroscopy: Fluorescence, Spin statistics and phosphorescence, Delayed fluorescence, Excimers, Quantum yield and life time, Energy and electron transfer, Quenching, Fluorescence anisotropy, Solvent effect. |