Transfer of chirality from light to a Disperse Red 1
molecular glass surface
Posted on 2017-11-21 - 15:03
Chiral structures and materials interact with light in well-
documented ways, but light can also interact with achiral
materials to generate chirality by inscribing its
asymmetric configuration on photoresponsive materials,
such as azobenzene derivatives. While it is possible to
thusly generate both bidimensional (2D) and
tridimensional (3D) chirality, 2D chirality is especially
attractive because of its non-reciprocity. Herein, 2D
chirality is induced on the surface of a glass-forming
Disperse Red 1 derivative by irradiation with a single
laser beam, yielding crossed spontaneous surface relief
gratings (SSRG) with different pitches. Azimuth rotations
up to 10° have been observed, and the absence of 3D
chirality has been confirmed. This method thus allows
generating non-reciprocal planar chiral objects by a
simple, single irradiation process on a thin film of a
material that can easily be processed over large areas or
onto small objects.
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Mazaheri, Leila; Lebel, Olivier; Nunzi, Jean-Michel (2017). Transfer of chirality from light to a Disperse Red 1
molecular glass surface. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.3863545.v1
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AUTHORS (3)
LM
Leila Mazaheri
OL
Olivier Lebel
JN
Jean-Michel Nunzi