When nanocellulose meets diffraction grating: Freestanding photonic paper with programmable optical coupling

Guang Chu, Dan Qu, Andrea Camposeo*, Dario Pisignano, Eyal Zussman

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)
26 Downloads (Pure)

Abstract

Photonic crystals based on plasmonic or dielectric periodic structures have attracted considerable interest owing to their capabilities to control light-matter interactions with tailored precision. By using a nanocellulose derived chiral liquid crystal as a building block, here we demonstrate a bio-inspired dual photonic structure that contains the combination of microscopic periodic 1D surface grating and nanoscopic helical organization, giving rise to programmable colour mixing and polarization rotation. We show that a variation in the photonic band-gap in the bulk matrix leads to simultaneous control over the reflection and diffraction of light with controllable iridescence.

Original languageEnglish
Pages (from-to)511-519
Number of pages9
JournalMaterials Horizons
Volume7
Issue number2
DOIs
Publication statusPublished - 1 Feb 2020
MoE publication typeA1 Journal article-refereed

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