Reconstruction of attosecond beating by interference of two-photon transitions

Reconstruction of attosecond beating by interference of two-photon transitions, more commonly known as RABBITT or RABBIT for short, is a widely used technique for obtaining the relative phase and amplitude of attosecond pulses. This technique involves the interference of two-photon interband transitions in solids. It is especially suited for diagnostics on the temporal structure of XUV pulses. The reconstruction of attosecond beating by interference of two-photon transitions is a valuable tool for studying ultrafast processes in materials and can provide insight into the dynamics of electrons in solids.

History
RABBITT was invented by Pierre Agostini, Harm Geert Muller and colleagues in 2001.