@article{7812,
  author = {V. J. F. Lapoutre and M. Haertelt and G. Meijer and A. Fielicke and J. M. Bakker},
  title = {Communication: IR spectroscopy of neutral transition metal clusters through thermionic emission},
  abstract = {The resonant multiple photon excitation of neutral niobium clusters using tunable infrared (IR) radiation leads to thermionic emission. By measuring the mass-resolved ionization yield as a function of IR wavenumber species selective IR spectra are obtained for Nb-n (n = 5-20) over the 200-350 cm(-1) spectral range. The IR resonance-enhanced multiple photon ionization spectra obtained this way are in good agreement with those measured using IR photodissociation of neutral Nb-n-Ar clusters. An investigation of the factors determining the applicability of this technique identifies the internal energy threshold towards thermionic emission in combination with a minimum required photon flux that rapidly grows as a function of excitation wavelength. (C) 2013 AIP Publishing LLC.},
  year = {2013},
  journal = {Journal of Chemical Physics},
  volume = {139},
  pages = {121101},
  month = {Sep},
  isbn = {0021-9606},
  doi = {10.1063/1.4822324},
  language = {eng},
}