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.
Author: | Lars Christiansen, Jens H. Nielsen, Dominik Pentlehner, Jonathan G. Underwood, Henrik Stapelfeldt |
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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 |