https://doi.org/10.1007/s100530050138
Rotationally state-selected and oriented molecules: Photoelectron spectroscopy and chirality of C3V molecules
Department of Physics & Meteorology, Indian Institute of
Technology, Kharagpur 721302, India
Corresponding author: a ncphy@phy.iitkgp.ernet.in
Received:
8
January
1998
Accepted:
25
January
1998
Published online: 15 June 1998
This paper reports a theoretical study of photoionization in a gaseous 
molecule prepared in a single 
rotational state of its ground electronic
motion
by an electrostatic hexapole field and oriented in space by the subsequent application
of a weak homogeneous electric field 
. Markedly different cross-sections
are calculated for electrons ejected from 13
orbital of a 
molecule by electromagnetic radiation plane polarized parallel and perpendicular
to . These photocurrents change further in different manners with rotational states
of . In accord with the experimental observation by Kaesdorf 
[Phys. Rev. Lett. 54, 885 (1985)], we also find a pronounced asymmetry in the
photocurrents emitted in directions along and opposite to . This
forward -backward asymmetry, which very strongly depends
upon the rotational state
of the molecule, is however more pronounced in parallel than in perpendicular
experimental geometry. Both circular as well as linear
dichroisms have also been
studied, but neither of these shows any forward-backward asymmetry in the
present application.
PACS: 33.15.-e – Properties of molecules and molecular ions / 33.20.Sn – Rotational analysis / 33.80.Eh – Autoionization, photoionization, and photodetachment
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
