Underwood, JG;
Sussman, BJ;
Stolow, A;
(2005)
Field-free three dimensional molecular axis alignment.
PHYS REV LETT
, 94
(14)
, Article 143002. 10.1103/PhysRevLett.94.143002.
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Abstract
We investigate strategies for field-free three dimensional molecular axis alignment using strong nonresonant laser fields under experimentally realistic conditions. Using the polarizabilites and rotational constants of an asymmetric top rotor molecule (ethene, C2H4), we consider three different methods for axis alignment of a Boltzmann distribution of rotors at 4 K. Specifically, we compare the use of impulsive kick laser pulses having both linear and elliptical polarization to the use of elliptically polarized switched laser pulses. We show that an enhanced degree of field-free three dimensional alignment of ground vibronic state molecules obtains from the use of two orthogonally polarized, time-separated laser pulses.
| Type: | Article |
|---|---|
| Title: | Field-free three dimensional molecular axis alignment |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.94.143002 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.94.143002 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | COULOMB EXPLOSION, LASER FIELDS, DYNAMICS, PULSES, SPECTROSCOPY, DIFFRACTION |
| 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/10123 |
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