On the proposal for femtosecond parent-ion mass spectrometry

Kumar, G. Ravindra ; Rajgara, F. A. ; Mathur, D. (1996) On the proposal for femtosecond parent-ion mass spectrometry Rapid Communications in Mass Spectrometry, 10 (13). pp. 1626-1628. ISSN 0951-4198

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1...

Related URL: http://dx.doi.org/10.1002/(SICI)1097-0231(199610)


The dissociative ionization (DI) of nitrogen dioxide in intense picosecond laser fields has been studied by measuring mass spectra at different wavelengths: 1064nm, 590nm and 532nm. The DI process is shown to depend on the laser wavelength in a significant way. Comparisons are made with the results of recent studies where it was suggested that laser pulse duration plays a crucial role in the DI of this molecule. In relation to these studies, we show that even for a single pulse duration (and with only one laser), it is possible to effect mass spectrometry of the parent molecular ion.

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