Abstract
Colors of crystals, pigments, metals, salt solutions and bioluminescence occur in nature due to the optical properties of electrons in atoms and molecules. However, colors can also result from interference effects on nanostructures. In contrast to artificial coloration, which are caused by well-defined regular structures, the structural colors of living organisms are often more intense and almost angle-independent. In this paper, we report the successful manufacturing of a lamellar nanostructure that mimics the ridge shape of the Morpho butterfly using a 3d-direct laser writing technique. The viewing angle dependency of the color was analyzed via a spectrometer and the structure was visualized using a scanning electron microscope. The generated nano- and micro-structures and their optical properties were comparable to those observed in the Morpho butterfly.
Highlights
The optical properties of biological surfaces are important for biological organisms
Structural coloration is caused by layered structures, layers of particles/fibrils/sheets, 3d photonic crystals or surface micro- and nano-structures, and it can be supported by pigments[4]
We demonstrate a concept and fabrication method to mimic the structural coloration of the Morpho butterfly using 2PP
Summary
The optical properties of biological surfaces are important for biological organisms. Structural coloration is caused by layered structures, layers of particles/fibrils/sheets, 3d photonic crystals or surface micro- and nano-structures, and it can be supported by pigments[4]. The Morpho scales are structured and ordered on a few hierarchical levels, but the scales contain simple defects and/or random variations in the shapes of the structures on each level Overall, this leads to interference, diffraction and scattering[8]. Kumar et al.[13] produced coloration through plasmonic structures using nanoimprint technology and metal vapor deposition These coloration[12,13], showed interesting optical properties but the generation is based on multiple fabrications steps, requires multiple materials and the coloration does not result from biomimetic structures. Enhance the transparency of a material by reducing its reflection[14], wear resistance[15] or superhydrophobicity[16,17], These properties are important for engineered materials with a broad range of real world applications
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
