What is it about?
Gibbon's et al had just published a paper showing that a dyed polymer exposed to polarised light gives orientation to a contacting Liquid Crystal. This News and Views article explains the effect in terms of light induced isomerism of the dye, causing rotation from an absorbing to non-absorbing state.
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This page is a summary of: Shedding light on alignment, Nature, May 1991, Springer Science + Business Media,
DOI: 10.1038/351015a0.
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