Phase Controlled Femtosecond Lasers for Sensitive, Precise, and Wide Bandwidth Nonlinear Spectroscopy -- Supercontinuum and High-Order Harmonics -- The Measurement of Ultrashort Light — Simple Devices, Complex Pulses -- Femtosecond Combs for Precision Metrology -- Infrared Precision Spectroscopy Using Femtosecond-Laser-Based Optical Frequency-Comb Synthesizers -- Real-Time Spectroscopy of Mol…