Arbitrary-detuning asynchronous optical sampling pump-probe spectroscopy of bacterial reaction centers

Laura Antonucci (1) , Adeline Bonvalet (1) , Xavier Solinas (1) , Mickael R. Jones (2) , Marten H. Vos (1) , Manuel Joffre (1)

1 LOB - Laboratoire d'optique et biosciences
2 School of Biochemistry

A recently reported variant of asynchronous optical sampling compatible with arbitrary unstabilized laser repetition rates is applied to pump-probe spectroscopy. This makes possible the use of a 5.1 MHz chirped pulse oscillator as the pump laser, thus extending the available time window to almost 200 ns with a time resolution as good as about 320 fs. The method is illustrated with the measurement in a single experiment of the complete charge transfer dynamics of the reaction center from Rhodobacter sphaeroides. © 2013 Optical Society of America

Domaines: Optique [physics.optics]

Laura Antonucci, Adeline Bonvalet, Xavier Solinas, Mickael R. Jones, Marten H. Vos, et al.. Arbitrary-detuning asynchronous optical sampling pump-probe spectroscopy of bacterial reaction centers. Optics Letters, 2013, 38 (17), pp.3322-3324. ⟨10.1364/OL.38.003322⟩. ⟨hal-00939595⟩