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Anisotropic hot electron emission from fullerenes

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    Rights statement: Copyright © 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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http://jcp.aip.org/resource/1/jcpsa6/v136/i16/p164301_s1
Original languageEnglish
Article number164301
Pages (from-to)-
Number of pages4
JournalThe Journal of Chemical Physics
Volume136
Issue number16
DOIs
Publication statusPublished - 23 Apr 2012

Abstract

Photoelectron spectra for fullerenes C60 and C70 ionized using 800 nm laser pulses with pulse durations from 120 to 1000 fs show thermal electron kinetic energy distributions but they also exhibit angular anisotropy with respect to the laser light polarization. The effective temperature of electrons, measured along the laser polarization direction, is significantly higher than in the perpendicular direction. We explain this observation by considering that the emission of the thermal electrons is uncorrelated with the phase of the laser pulse, unlike directly ionized electrons, and, depending on the time of emission, they may experience an additional “kick” from the vector potential of the laser field when they are emitted from the molecule.

    Research areas

  • fullerenes, hot carriers, light polarisation, photoelectron spectra, photoionisation

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