Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modifying molecular scattering from rough solid surfaces using
  ultrashort laser pulses   We consider solid surface scattering of molecules that were subject to strong
non-resonant ultrashort laser pulses just before hitting the surface. The
pulses modify the rotational states of the molecules, causing their field free
alignment, or a rotation with a preferred sense. We show that field-free
laser-induced molecular alignment leads to correlations between the scattering
angle and the sense of rotation of the scattered molecules. Moreover, by
controlling the sense of laser induced unidirectional molecular rotation, one
may affect the scattering angle of the molecules. This provides a new means for
separation of mixtures of molecules (such as isotopes and nuclear-spin isomers)
by laser controlled surface scattering.

35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas