Recent improvements in the performance of light sources, i.e., reduction in pulse length and increases in wavelength range and power levels, have led toultrafast technology becoming a basic tool in a wide variety of scientific fields. This book presents the very latest developments in the rapidly rxpanding field of ultrashofrt lase pulses and their applications in physics, chemistry, biology, and artificial devices. It provides the most up-to-date record of current research and references in the field of ultrafast phenomena. Contents: Elementary Dynamics: Chemistry, Biology and Physics - Spectrospcopy and Advances in Measurements - Tools: Sources and Amplifiers - High Intensity and Nonlinear Effects - Semiconductors, Confinement and Opto-Electronics - Biology: Primary Dynamics, Electron and Energy Transfer - Chemistry: Electron and Energy Transfer, and Solvation Dynamics.