Disentangling the volume effect through intensity-difference spectra: application to laser-induced dissociation of H2+
Optics Letters, Vol. 30, Issue 6, pp. 664-666 doi:10.1364/OL.30.000664
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- OCIS Codes:
- (320.2250) Ultrafast optics : Femtosecond phenomena
- (320.7110) Ultrafast optics : Ultrafast nonlinear optics
- (320.7120) Ultrafast optics : Ultrafast phenomena
Citation
Pengqian Wang, A. Max Sayler, Kevin D. Carnes, Brett D. Esry, and Itzik Ben-Itzhak, "Disentangling the volume effect through intensity-difference spectra: application to laser-induced dissociation of H2+," Opt. Lett. 30, 664-666 (2005)
http://www.opticsinfobase.org/abstract.cfm?URI=ol-30-6-664
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An intensity-difference spectrum method is developed to disentangle the intensity volume effect inherent in focused laser beam interaction with gas-phase matter. This method is applicable to a Gaussian beam of constant axial intensity, which keeps the exact contribution from a predetermined intensity range and eliminates the contributions from lower intensities. We apply this method to the angularly resolved kinetic energy release spectrum of laser-induced dissociation of H2+. The difference spectrum at higher intensities is found to be dominated by the bond-softening process, and the distribution shifts to lower energy and becomes narrower with increasing intensity.
© 2005 Optical Society of America
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