What Are the Key Techniques in Ultrafast Spectroscopy?
Several techniques fall under the umbrella of ultrafast spectroscopy, each suited to different types of studies. Some of the key techniques include:
Transient Absorption Spectroscopy: Measures changes in the absorption of light by the sample as a function of time. Time-Resolved Fluorescence Spectroscopy: Monitors the emission of light from the sample following excitation. Terahertz Spectroscopy: Uses terahertz frequency pulses to probe low-energy excitations and dynamics in materials. 2D Spectroscopy: Provides information about correlations between different transitions in a sample, revealing complex interactions.
