TY - NEWS A1 - Christiansen, Lars A1 - Nielsen, Jens H. A1 - Pentlehner, Dominik A1 - Underwood, Jonathan G. A1 - Stapelfeldt, Henrik T1 - Alignment enhancement of molecules embedded in helium nanodroplets by multiple laser pulses T2 - Physical Review A N2 - 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. KW - Isolated Molecules KW - Helium nanodroplets Y1 - 2015 UR - https://opus4.kobv.de/opus4-rosenheim/frontdoor/index/index/docId/1095 IS - 92 ER -