Ultra-fast laser pulses provide an ion source for highly selective mass spectroscopy

  title={Ultra-fast laser pulses provide an ion source for highly selective mass spectroscopy},
  author={S. Mehdi Sharifi and A. Talebpour and See Leang Chin},
  journal={Applied Physics B},
The mass spectra of two isomers of butane, 1-butene and cis-2-butene, interacting with linearly polarized Ti:sapphire laser pulses, were compared. It was demonstrated that the difference between the two spectra are much more pronounced than the corresponding spectra prepared by 100 eV electron ionization ion source. In addition, the difference could be varied by changing the peak laser intensity. The observation suggests potential application of dissociative multiphoton ionization by ultrafast… 
4 Citations

Femtosecond lasers for mass spectrometry: proposed application to catalytic hydrogenation of butadiene.

Mass spectra from the interaction of intense, femtosecond laser pulses with 1,3-butadiene, 1-butene, and n-butane have been obtained and potential mass spectrometry applications, for example in the analysis of catalytic reaction products, are discussed.

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Coulomb effect in multiphoton ionization of rare-gas atoms

Using 200 fs, 800 nm Ti:sapphire laser pulses to ionize noble atom gases, the ion versus intensity curves of these gases were obtained. By comparing the experimental curves with those obtained using

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The infrared multiphoton photodissociation of a molecular ion, HCl+ in intense (I>1013 W/cm2), short (τ⩽1 ps) laser pulses is studied numerically by solving the nonperturbative time-dependent

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Ionization and dissociation of diatomic molecules in intense infrared laser fields

We report the first observation of infrared multiphoton dissociation of a strongly bound diatomic molecule, HCl+. The dissociation is explained by a charge–resonance coupling of electronic states of

Multiple absorption of laser photons by atoms

Applying a space translation operation, the Schrodinger equation for an atom in an electromagnetic field is solved with sufficient accuracy to obtain probabilities for multiple absorption of photons

Simultaneous analysis of butene isomer mixtures using process mass spectrometry

Chemical substructure identification by mass spectral library searching

  • S. Stein
  • Computer Science
    Journal of the American Society for Mass Spectrometry
  • 1995