A real-time acquisition system for pump-probe spectroscopy

Paolo Bartolini (1) , Roberto Eramo (1) , Andrea Taschin (1) , Marco de Pas (1) , Renato Torre (1)

1 UniFI - Università degli Studi di Firenze = University of Florence = Université de Florence

An innovative acquisition system for time-resolved spectroscopy is presented. It is based on a real-time acquisition of the experimental signal during the rapid scan of an optical delay line and enables data acquisition with high absolute time resolution (1 femtosecond), high scanning velocity (2.5 cm/sec) and long time delay (several nanoseconds). We report precise interferometric tests of the acquisition system, focusing on technical features of the optical delay line. We check this data acquisition technique performing ultra-fast time-resolved experiments with laser sources of high and low repetition rate.

Mots clés: Physical Sciences

Paolo Bartolini, Roberto Eramo, Andrea Taschin, Marco de Pas, Renato Torre. A real-time acquisition system for pump-probe spectroscopy. Philosophical Magazine, 2007, 87 (3-5), pp.731-740. ⟨10.1080/14786430600953780⟩. ⟨hal-00513766⟩