Pump probe spectroscopy is a technique used to study the dynamics of molecules and materials by applying a short pulse of energy (the pump) to excite the system and then measuring the changes in the system's properties over time using a second pulse of energy (the probe).
In pump probe spectroscopy, the pump pulse excites the system, causing a change in its energy state. The probe pulse then measures the changes in the system's properties, such as absorption, emission, or reflectance, as a function of time. By varying the time delay between the pump and probe pulses, the dynamics of the system can be studied.
Pump probe spectroscopy can be applied to a wide range of materials, including liquids, solids, and gases. It is commonly used to study biological molecules, semiconductors, and other materials with fast dynamics.
Pump probe spectroscopy offers several advantages over other techniques. It is non-destructive, meaning that the sample is not damaged during the measurement. It also has a high temporal resolution, allowing for the study of fast dynamics. Additionally, pump probe spectroscopy can be used to study a wide range of materials and processes.
Pump probe spectroscopy has a wide range of applications in various fields, including chemistry, physics, biology, and materials science. It is commonly used to study chemical reactions, energy transfer processes, and biomolecular dynamics. It is also used in materials research to study the properties of semiconductors, solar cells, and other materials with fast dynamics.