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Tuning the Refractive Index in Gyroid Photonic Crystals via Lead‐Chalcogenide Nanocrystal Coating
Author(s) -
Goi Elena,
Mashford Benjamin S.,
Cumming Benjamin P.,
Gu Min
Publication year - 2016
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201500450
Subject(s) - chalcogenide , materials science , refractive index , nanocrystal , gyroid , coating , laser , layer (electronics) , optoelectronics , diamond , nanotechnology , optics , polymer , composite material , physics , copolymer
The refractive index of a 3D gyroid photonic crystal is engineered via lead‐chalcogenide nanocrystal coating. An alternatively charged layer‐by‐layer deposition protocol is developed to deposit high refractive index PbS thin films on polymer templates fabricated via direct laser writing. Simulation and experiments confirm that the effective refractive index of the photonic crystal is increased by ≈40%.