Attosecond-resolved photoionization of chiral molecules

作者：Beaulieu S; Comby A; Clergerie A; Caillat J; Descamps D; Dudovich N; Fabre B; Geneaux R; Legare F; Petit S; Pons B; Porat G; Ruchon T; Taieb R; Blanchet V; Mairesse Y

来源：Science, 2017, 358(6368): 1288-1293.

DOI：10.1126/science.aao5624

<jats:title>Clocking departures from chiral origins</jats:title>
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Just as the atoms in a molecule can be arranged in a left- or right-handed manner, the field in a beam of light can circulate like a left- or right-handed corkscrew. Matches or mismatches in this mutual handedness give rise to an asymmetric distribution of trajectories as electrons are ejected during photoionization. Beaulieu
<jats:italic>et al.</jats:italic>
used an interferometric approach to uncover the temporal dynamics associated with this asymmetry. They probed the mirror-image isomers of camphor with circularly polarized light, which revealed the angle-dependent delays between trajectories that spanned up to 24 attoseconds.
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<jats:italic>Science</jats:italic>
, this issue p.
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• 出版日期2017-12-8
• 单位中国地震局