Femtosecond spectral electric field reconstruction using coherent   transients
  We have implemented a new approach for measuring the time-dependent intensity and phase of ultrashort optical pulses. It is based on the interaction between shaped pulses and atoms, leading to coherent transients. 
Antoine Monmayrant (LCAR), B\'eatrice Chatel (LCAR), Bertrand Girard   (LCAR)