Colouration by total internal reflection and interference at microscale concave interfaces

@article{Goodling2019ColourationBT,
  title={Colouration by total internal reflection and interference at microscale concave interfaces},
  author={Amy E. Goodling and Sara Nagelberg and Bryan Kaehr and Caleb H. Meredith and Seong Ik Cheon and Ashley P. Saunders and Mathias Kolle and Lauren D. Zarzar},
  journal={Nature},
  year={2019},
  volume={566},
  pages={523-527}
}
Many physical phenomena create colour: spectrally selective light absorption by pigments and dyes1,2, material-specific optical dispersion3 and light interference4–11 in micrometre-scale and nanometre-scale periodic structures12–17. In addition, scattering, diffraction and interference mechanisms are inherent to spherical droplets18, which contribute to atmospheric phenomena such as glories, coronas and rainbows19. Here we describe a previously unrecognized mechanism for creating iridescent… Expand
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