dichroism

noun

1. (countable, uncountable)The property of some crystals of transmitting different colors of light in different directions.
2. (countable, uncountable)The property of some anisotropic materials of having different absorption coefficients for light polarized in different directions; circular dichroism.

   “In the close vicinity of a chiral nanostructure, the circular dichroism of a biomolecule could be greatly enhanced, due to the interaction with the local superchiral fields.”