The temporal characterization of a femtosecond laser pulse in the deep ultraviolet region using an interferometric autocorrelation scheme is demonstrated. Two-photon ionization of a molecule in a time-of-flight mass spectrometer was used as a nonlinear detector to obtain an autocorrelation trace. This setup proved useful in not only providing a temporal characterization of a pulse but also investigating the ultrafast dynamics of photochemical processes.
© 2007 Optical Society of America
Original Manuscript: March 1, 2007
Revised Manuscript: April 15, 2007
Manuscript Accepted: April 17, 2007
Published: June 6, 2007
Shin-ichi Zaitsu, Yuki Miyoshi, Fumiaki Kira, Satoshi Yamaguchi, Tomohiro Uchimura, and Tatoro Imasaka, "Interferometric characterization of ultrashort deep ultraviolet pulses using a multiphoton ionization mass spectrometer," Opt. Lett. 32, 1716-1718 (2007)