Lectures -- Investigating Physical Systems with Optical Spectroscopy -- Light-Matter Interactions on the Femtosecond Time Scale -- Photons and Photon Statistics: From Incandescent Light to Lasers -- Carrier-Wave Nonlinear Optics -- Carotenoid Excited States-Photophysics, Ultrafast Dynamics and Photosynthetic Functions -- Spectroscopy of Quantum Wells and Superlattices -- Lasers for Frontier Speā¦