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Alignment enhancement of molecules embedded in helium nanodroplets by multiple laser pulses

  • We show experimentally that field-free one-dimensional (1D) alignment of 1,4-diiodobenzene molecules embedded in helium nanodroplets, induced by a single, linearly polarized 200-fs laser pulse, can be significantly enhanced by using two or four optimally synchronized laser pulses. The strongest degree of 1D alignment is obtained with four pulses and gives ⟨cos2θ⟩>0.60. Besides the immediate implications for molecular frame studies, our results pave the way for more general manipulation of rotational motion of molecules in He droplets.

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Metadaten
Author:Lars Christiansen, Jens H. Nielsen, Dominik Pentlehner, Jonathan G. Underwood, Henrik Stapelfeldt
Parent Title (English):Physical Review A
Document Type:Contribution to a Periodical
Language:English
Publication Year:2015
Tag:Helium nanodroplets; Isolated Molecules
Issue:92
faculties / departments:Fakultät für Chemische Technologie und Wirtschaft
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie
6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten