Abstract

A multiphoton-ionization apparatus utilizing a time-of-flight mass spectrometer as a detector of parent and fragment ions is described. Results for the multiphoton resonant ionization and the fragmentation of benzene are presented together with an accurate numerical evaluation of the photoionization probability. The comparison between our experimental and numerical results offers the possibility of estimating the value of the two-photon ionization cross section from the ¹B_2u excited state of benzene, which is not yet established.

© 1985 Optical Society of America

Probing argon–benzene van der Waals molecules and isotopically substituted benzene with laser-ionization mass spectrometry

Kevin G. Owens and James P. Reilly
J. Opt. Soc. Am. B 2(9) 1589-1593 (1985)

Can nonresonant multiphoton ionization be ultrasensitive?

C. H. Becker and K. T. Gillen
J. Opt. Soc. Am. B 2(9) 1438-1443 (1985)

Absolute two-photon ionization yields for selected organic molecules at 248 nm

William K. Bischel, Leonard J. Jusinski, Mark N. Spencer, and Donald J. Eckstrom
J. Opt. Soc. Am. B 2(6) 877-885 (1985)

Two-color multiphoton ionization of xenon

R. N. Compton and John C. Miller
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Resonance-ionization mass spectrometry for high-resolution, mass-resolved spectra of rare isotopes

Charles M. Miller, Rolf Engleman, and Richard A. Keller
J. Opt. Soc. Am. B 2(9) 1503-1509 (1985)