Pump-Probe Spectroscopy is a powerful technique used to study the dynamics of materials at ultrafast timescales. It involves two laser pulses: the first pulse, called the "pump," excites the sample, while the second pulse, the "probe," measures the changes in the sample's properties after a controlled delay. This allows researchers to observe processes like chemical reactions and electron movements in real time. By varying the time delay between the pump and probe pulses, scientists can capture snapshots of the system's evolution. This method is widely used in fields such as chemistry, physics, and materials science to gain insights into fundamental processes at the molecular level.