Momentum correlation between a photoelectron and a fragment ion ejected from ethanol in femtosecond intense laser fields

Itakura, Ryuji; Hosaka, Koichi*; Yamanouchi, Kaoru*; Yokoyama, Atsushi

In order to clarify the mechanism of dissociative ionization of ethanol in intense laser fields, the correlation maps P(E $_{elec}$ , E $_{ion}$ ), where E $_{elec}$ and E $_{ion}$ denote kinetic energy of an electron and a fragment ion, respectively, are obtained by photoelectron-photoion coincidence momentum imaging. The kinetic energy distribution of the ions at a specific electron kinetic energy of electrons E $_{elec}$ are reproduced by an exponential curve of exp(-E $_{ion}$ /E $_{0}$ ), where E $_{0}$ is a variable parameter, suggesting that the intramolecular energy redistribution proceeds efficiently in the course of the dissociation process after the ionization.

Language	:	English
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Meeting title	:	2010 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2010)
Held date	:	2010/12
Location (city)	:	Honolulu
Location (country)	:	U.S.A.
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Keywords	:	no keyword
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Registration No. : BB20100916
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