Scientific applications
Ultrafast spectroscopy
Transient absorption, time-resolved fluorescence, femtosecond stimulated Raman, transient grating, sum-frequency generation, TR-ARPES, two-dimensional electronic and infrared spectroscopy, flash photolysis, and Z-scan.
Techniques
Scientific applications
Transient absorption spectroscopy
The transient absorption experiment enables the quantitative characterization of time-dependent absorption in optically excited samples.
Scientific applications
Time-resolved fluorescence spectroscopy
Fluorescence upconversion, TCSPC, and phosphorescence allow for measuring fluorescence dynamics at different time scales.
Scientific applications
Femtosecond stimulated Raman spectroscopy
Time-resolved spectroscopy technique for observing changes in the vibrational structure of optically excited molecular systems.
Scientific applications
Transient grating spectroscopy
Laser-induced transient grating spectroscopy is a pump–probe technique that utilizes laser interference instead of a single beam to excite the medium.
Scientific applications
Sum-frequency generation spectroscopy
Sum-frequency generation spectroscopy is used to assess the vibrational properties of surfaces and interfaces with monolayer sensitivity.
Scientific applications
Time- and angle-resolved photoemission spectroscopy
TR-ARPES extends and complements conventional ARPES by adding femtosecond time resolution.
Scientific applications
Two-dimensional electronic spectroscopy
An ultrafast laser spectroscopy technique studying electronic states in condensed-phase systems.
Scientific applications
Two-dimensional infrared spectroscopy
A nonlinear infrared spectroscopy technique investigating vibrational modes in condensed-phase systems.
Scientific applications
Flash photolysis
The principle of flash photolysis is analogous to the femtosecond transient absorption experiment but with the delay in a nanosecond–microsecond range.
Scientific applications
Z-scan
The Z-scan experimental technique is used for measuring the nonlinear refractive index and nonlinear absorption coefficient of optical materials.
