A dual-echelon technique for performing real-time pumpprobe spectroscopy with sub-100-fs temporal resolution is demonstrated. In a single laser shot, measurements at 400 different temporal delays are recorded to cover a total temporal range of 10 ps in 25-fs steps. Data from a glass sample and an explosive single crystal, each irradiated with intensity above the permanent damage threshold, are presented.
© 2000 Optical Society of America
Gregory P. Wakeham and Keith A. Nelson, "Dual-echelon single-shot femtosecond spectroscopy," Opt. Lett. 25, 505-507 (2000)