N Kajumba et al 2008 New J. Phys. 10 025008 doi:10.1088/1367-2630/10/2/025008
Measurement of electronic structure from high harmonic generation in non-adiabatically aligned polyatomic molecules
Focus on Attosecond PhysicsN Kajumba1,7, R Torres1, Jonathan G Underwood2, J S Robinson1, S Baker1, J W G Tisch1, R de Nalda3, W A Bryan4,8, R Velotta5, C Altucci5, I Procino2, I C E Turcu4 and J P Marangos1,6
Show affiliationsPart of Focus on Attosecond Physics
We have explored the use of laser driven high-order harmonic generation to probe the electronic structure and symmetry of conjugated polyatomic molecular systems. We have investigated non-adiabatically aligned samples of linear symmetric top, nonlinear symmetric top and asymmetric top molecules, and we have observed signatures of their highest occupied molecular orbitals in the dependence of harmonic yields on the angle between the molecular axis and the polarization of the driving field. A good quantitative agreement between the measured orientation dependence of high harmonic generation and calculations employing the strong field approximation has been found. These measurements support the extension of molecular imaging techniques to larger systems.
- PACS
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42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
31.30.-i Corrections to electronic structure
31.15.-p Calculations and mathematical techniques in atomic and molecular physics
- Subjects
- Dates
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Issue 2 (February 2008)
Received 7 September 2007
Published 29 February 2008
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Measurement of electronic structure from high harmonic generation in non-adiabatically aligned polyatomic molecules
N Kajumba et al 2008 New J. Phys. 10 025008
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