Ionization and Fragmentation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>C</mml:mi></mml:mrow><mml:mrow><mml:mn>60</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>via Multiphoton-Multiplasmon Excitation
S. HunscheFOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The NetherlandsT. StarczewskiDepartment of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund, SwedenA. L’HuillierDepartment of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund, SwedenAnders PerssonDepartment of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund, SwedenC.-G. WahlströmDepartment of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund, SwedenH. B. van Linden van den HeuvellFOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The NetherlandsSune SvanbergDepartment of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund, Sweden
1996lv
ABI
Аннотация
We study the intensity dependence of ionization and fragmentation of buckminsterfullerene ( ${\mathrm{C}}_{60}$) in strong laser fields. Our data provide strong evidence that at intensities $\ensuremath{\lesssim}{10}^{14}\mathrm{W}/{\mathrm{cm}}^{2}$ these processes occur predominantly via multiphoton excitation of the 20 eV plasmon resonance of ${\mathrm{C}}_{60}$. At least two plasmons have to be created to initiate fragmentation or multiple ionization.
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