Toward the Extension of High Order Harmonic Spectroscopy to Complex Molecules: Investigation of Aligned Hydrocarbons

  • C. Vozzi
  • R. Torres
  • M. Negro
  • L. Brugnera
  • T. Siegel
  • C. Altucci
  • R. Velotta
  • F. Frassetto
  • P. Villoresi
  • L. Poletto
  • S. De Silvestri
  • J. P. Marangos
  • S. Stagira
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 125)

Abstract

High-order harmonic generation is as a powerful tool for the study of molecular properties. Up to now this investigation tool has been confined to simple molecules, with a relatively high ionization potential, since ionization saturation hindered its exploitation to fragile molecules. In this work we show that such limitation can be overcome by using mid-IR ultrashort driving pulses; as prototypical molecules we considered hydrocarbons. Clear signatures of the highest occupied molecular orbital were found in the harmonic spectra generated in unsaturated aligned hydrocarbons like acetylene, ethylene, allene and 1,3-butadiene. Our findings demonstrate that high-order harmonic generation spectroscopy can be extended to complex molecular species.

Keywords

Harmonic Spectrum Attosecond Pulse Ionization Saturation High Ionization Potential Saturation Issue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

We acknowledge the financial support from the ECs Seventh Framework Programme (LASERLAB-EUROPE, Grant Agreement No. 228334), EPSRC Grant No. EP/E028063/1, and the partial support from Fondazione Cariplo (Project No. 2009–2562).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • C. Vozzi
    • 1
  • R. Torres
    • 2
  • M. Negro
    • 5
  • L. Brugnera
    • 2
  • T. Siegel
    • 2
  • C. Altucci
    • 3
  • R. Velotta
    • 3
  • F. Frassetto
    • 4
  • P. Villoresi
    • 4
  • L. Poletto
    • 4
  • S. De Silvestri
    • 5
  • J. P. Marangos
    • 2
  • S. Stagira
    • 5
  1. 1.Istituto di Fotonica e Nanotecnologie - CNRMilanItaly
  2. 2.Blackett LaboratoryImperial CollegeLondonUK
  3. 3.CNISM and Università di Napoli Federico IINapoliItaly
  4. 4.Istituto di Fotonica e Nanotechnologie - CNR & DEIUniversità di PadovaPadovaItaly
  5. 5.Dipartimento di FisicaPolitecnico di MilanoMilanItaly

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