Extracting sub-cycle electronic and nuclear dynamics from high harmonic spectra.
Extracting sub-cycle electronic and nuclear dynamics from high harmonic spectra.
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DOI:
10.1038/s41598-021-82232-1
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发表时间:
2021-01-28
影响因子:
4.6
通讯作者:
Marangos JP
中科院分区:
文献类型:
--
作者:
Austin DR;Johnson AS;McGrath F;Wood D;Miseikis L;Siegel T;Hawkins P;Harvey A;Mašín Z;Patchkovskii S;Vacher M;Malhado JP;Ivanov MY;Smirnova O;Marangos JP
We present a new methodology for measuring few-femtosecond electronic and nuclear dynamics in both atoms and polyatomic molecules using multidimensional high harmonic generation (HHG) spectroscopy measurements, in which the spectra are recorded as a function of the laser intensity to form a two-dimensional data set. The method is applied to xenon atoms and to benzene molecules, the latter exhibiting significant fast nuclear dynamics following ionization. We uncover the signature of the sub-cycle evolution of the returning electron flux in strong-field ionized xenon atoms, implicit in the strong field approximation but not previously observed directly. We furthermore extract the nuclear autocorrelation function in strong field ionized benzene cations, which is determined to have a decay of fs, in good agreement with the fs obtained from direct dynamics variational multi-configuration Gaussian calculations. Our method requires minimal assumptions about the system, and is applicable even to un-aligned polyatomic molecules.
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影响因子:
16.6
作者:
Galbraith MCE;Scheit S;Golubev NV;Reitsma G;Zhavoronkov N;Despré V;Lépine F;Kuleff AI;Vrakking MJJ;Kornilov O;Köppel H;Mikosch J
通讯作者:
Mikosch J
影响因子:
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DOI:
10.1088/0953-4075/42/13/134002
发表时间:
2009-07-14
影响因子:
1.6
作者:
Haessler, S.;Boutu, W.;Salieres, P.
通讯作者:
Salieres, P.
影响因子:
8.6
作者:
Lein, M
通讯作者:
Lein, M