Instantaneous photoinduced patterning of an azopolymer colloidal nanosphere assembly

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Date
2016-09-01
Authors
Ortyl, Ewelina
Zielinska, Sonia
Barillé, Régis
Almohamed, Yasser
Nunzi, Jean-Michel
Keyword
Abstract
Colloidal azopolymer nanospheres assembled on a glass substrate were exposed to a single collimated laser beam. The combination of photo-fluidic elongation of the spherical colloids and light induced self-organization of the azopolymer film allows the quasiinstantaneous growth of a large amplitude surface relief grating. Pre-structuration of the sample with the nanosphere assembly supports faster creation of the spontaneous pattern. Confinement into the nanospheres provides exceptionally large modulation amplitude of the spontaneous relief. The method is amenable to any kind of photoactive azo-materials.
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