Transient Absorption Spectroscopy
Transient absorption (TA) experiment allows quantitative characterization of time-dependent absorption of an optically excited sample.
Time-Resolved Fluorescence Spectroscopy
Fluorescence upconversion, time-correlated single-photon counting (TCSPC), and phosphorescence allow measuring fluorescence dynamics at different time scales.
Femtosecond Stimulated Raman Spectroscopy
Femtosecond stimulated Raman spectroscopy (FSRS) is a time-resolved spectroscopy technique for observing changes in the vibrational structure of optically excited molecular systems.
Transient Grating Spectroscopy
Laser-induced transient grating (LITG) spectroscopy is a pump-probe technique that utilizes laser interference instead of a single beam to excite the medium.
Sum-Frequency Generation Spectroscopy
Sum-frequency generation (SFG) spectroscopy is used to assess the vibrational properties of surfaces and interfaces with a monolayer sensitivity.
Time-Resolved Photoemission Spectroscopy
Time- and angle-resolved photoemission spectroscopy (TR-ARPES) extends and complements conventional ARPES by adding femtosecond time-resolution.
Two-Dimensional Electronic Spectroscopy
Two-dimensional electronic spectroscopy (2DES) is an ultrafast laser spectroscopy technique studying electronic states in condensed-phase systems.
Two-Dimensional Infrared Spectroscopy
Two-dimensional infrared spectroscopy (2DIR) is a nonlinear infrared spectroscopy technique investigating vibrational modes in condensed-phase systems.
The principle of flash photolysis is analogous to the femtosecond transient absorption (TA) experiment but with the delay in a nanosecond–microsecond range.