TY - JOUR
T1 - Hexapole state selection and focusing versus brute force orientation of beam molecules.
AU - Bulthuis, J.
AU - van Leuken, J.J.
AU - Stolte, S.
PY - 1995
Y1 - 1995
N2 - The commonly used method of orienting polar molecules in a beam, by state selection and focusing with an electrostatic hexapole lens, is compared with the recently introduced orientation method by means of a strong, homogeneous, electric field, based on second- and higher-order Stark effects. The latter, so-called brute force orientation technique, has proved much more effective than had been assumed until recently, and increasingly so if the beam molecules are rotationally very cold. The properties of both techniques are illustrated by a number of examples. The wider applicability and technically simpler implementation of the brute force orientation technique is offset by the absence of state selection. For the description of the molecular orientational distribution this means that, in general, more parameters are needed than for a molecule selected in a single quantum state.
AB - The commonly used method of orienting polar molecules in a beam, by state selection and focusing with an electrostatic hexapole lens, is compared with the recently introduced orientation method by means of a strong, homogeneous, electric field, based on second- and higher-order Stark effects. The latter, so-called brute force orientation technique, has proved much more effective than had been assumed until recently, and increasingly so if the beam molecules are rotationally very cold. The properties of both techniques are illustrated by a number of examples. The wider applicability and technically simpler implementation of the brute force orientation technique is offset by the absence of state selection. For the description of the molecular orientational distribution this means that, in general, more parameters are needed than for a molecule selected in a single quantum state.
U2 - 10.1039/ft9959100205
DO - 10.1039/ft9959100205
M3 - Article
VL - 91
SP - 205
EP - 214
JO - Journal of the Chemical Society, Faraday Transactions
JF - Journal of the Chemical Society, Faraday Transactions
SN - 0956-5000
ER -