Christiansen, L;
Nielsen, JH;
Pentlehner, D;
Underwood, JG;
Stapelfeldt, H;
(2015)
Alignment enhancement of molecules embedded in helium nanodroplets by multiple laser pulses.
Physical Review A
, 92
(5)
, Article 053415. 10.1103/PhysRevA.92.053415.
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Alignment enhancement of molecules embedded in helium nanodroplets by multiple laser pulses |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.92.053415 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevA.92.053415 |
| Language: | English |
| Additional information: | Copyright © 2015 American Physical Society. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1474735 |
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