Js. Bakos et al., Broadening and shifting of the methanol 119-/mu m gain line of linear and circular polarization by collision with chiral molecules - art. no. 012507, PHYS REV A, 6301(1), 2001, pp. 2507
Evidence of circular dichroism has been observed in the spectral properties
of a gas of left-right symmetric molecules. This dichroism comes about as
the result of collisions of the symmetric molecules with left-right asymmet
ric molecules introduced as a buffer gas. In this sense. the dichroism can
be said to have been transferred from the chiral buffer molecules to the sy
mmetric, nonchiral molecules of the background vapor. This transferred dich
roism appears as a broadening in the gain line of the symmetric molecule th
at is asymmetric with respect to the right or left handedness of a circular
ly polarized probe. The broadening of the 119-mum line of the methanol mole
cule was observed using infrared-far-infrared double-resonance spectroscopy
.