The 1B2u←←1Alg two‐photon spectra of several isotopes of benzene by supersonic beam–multiphoton ionization spectroscopy

1982 ◽  
Vol 77 (2) ◽  
pp. 654-668 ◽  
Author(s):  
Abha Sur ◽  
Joseph Knee ◽  
Philip Johnson
Keyword(s):  
Multiphoton Ionization ◽  
Two Photon ◽  
Photon Spectra ◽  
Multiphoton Ionization Spectroscopy

Triplet excited states of the NH(ND) radical revealed via two photon resonant multiphoton ionization spectroscopy

1992 ◽  
Vol 96 (7) ◽  
pp. 5538-5540 ◽  
Author(s):  
Simon G. Clement ◽  
Michael N. R. Ashfold ◽  
Colin M. Western ◽  
Russell D. Johnson ◽  
Jeffrey W. Hudgens
Keyword(s):  
Excited States ◽  
Multiphoton Ionization ◽  
Two Photon ◽  
Multiphoton Ionization Spectroscopy ◽  
Triplet Excited States

scholarly journals (2 + 2) Resonance Enhanced Multiphoton Ionization Spectra of Jet-Cooled ortho-, meta- and para-Xylene

1988 ◽  
Vol 9 (4-6) ◽  
pp. 241-263 ◽  
Author(s):  
T. G. Blease ◽  
R. J. Donovan ◽  
P. R. R. Langridge-Smith ◽  
T. Ridley
Keyword(s):  
Excited State ◽  
Multiphoton Ionization ◽  
Vibrational Frequencies ◽  
Vibronic Coupling ◽  
Two Photon ◽  
Para Xylene ◽  
Coupling Mode ◽  
Photon Spectra ◽  
First Time ◽  
Franck Condon

Two-photon spectra of the S1(Ã)–S0(X˜) transition of jet-cooled ortho-, meta- and para-xylene have been recorded in the region 43,000–37,000 cm−1 using resonance enhanced multiphoton ionization excitation. A full vibronic analysis for all three isomers has been carried out enabling the identification of several excited state vibrational frequencies for the first time. In particular, for ortho and para substitutions, a new, strong two-photon vibronic coupling mode ν19b has been identified, and the significance of this result is discussed. Some anomalies in the assignment of previously published spectra of the xylenes, and related disubstituted benzenes, have been observed and reassignments are suggested. In addition we show that the comparison of one and two-photon spectra provides a method for determining the mechanism by which totally symmetric fundamentals gain their intensity in one-photon spectra, namely either from Herzberg–Teller intensity stealing or due to favourable Franck–Condon overlap.

Investigation of some Rydberg states of ketene by two-photon resonance-enhanced multiphoton ionization spectroscopy

2003 ◽  
Vol 119 (15) ◽  
pp. 7772-7784 ◽  
Author(s):  
Shiliang Wang ◽  
Yujun Shi ◽  
Stéphane Dénommée ◽  
Benoit Simard ◽  
Yuan-Pern Lee
Keyword(s):  
Multiphoton Ionization ◽  
Rydberg States ◽  
Two Photon ◽  
Multiphoton Ionization Spectroscopy ◽  
Photon Resonance
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