Topological reconstruction of stretched transparent surface relief grating via optical diffraction pattern

Posted on 10.06.2021 - 17:19
The optical characterization of transparent and stretchable patterned surfaces replicated from the fabrication of quasi-crystal structures on azopolymer thin films is presented. The complexity of the quasi-crystal surface fabrication is obtained by superimposed multiple light exposures. Azopolymer surface patterns are used as a replica molding master. The microscopic elongation of nanocavities induced by macroscopic stretchings of the elastomeric quasi-crystal replication is characterized via optical diffraction. An original numerical method is presented to reconstruct the structured surface deduced from the optical diffraction measurements. The measurements show that drastic topologic changes, like going from cavities to a canal, happens on the surface. This could be ingeniously used for creating actionable structured surfaces or nanoparticles trapping surfaces.

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SORKHABI, SHAHLA GOLGHASEMI; Kandjani, Sohrab Ahmadi; COUSSEAU, Fabien; DABOS-SEIGNON, sylvie; Loumaigne, Matthieu; ortyl, ewelina; et al. (2021): Topological reconstruction of stretched transparent surface relief grating via optical diffraction pattern. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.5433264.v2
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Applied Optics

AUTHORS (8)

SHAHLA GOLGHASEMI SORKHABI
Sohrab Ahmadi Kandjani
Fabien COUSSEAU
sylvie DABOS-SEIGNON
Matthieu Loumaigne
ewelina ortyl
sonia zielinska
Regis Barille

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