Strain gauges that change colour when stressed, bright backlight-free displays and highly sensitive biological sensors are all potential applications of tunable photonic crystal materials, reports Duncan Graham-Rowe.
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Graham-Rowe, D. Tunable structural colour. Nature Photon 3, 551–553 (2009). https://doi.org/10.1038/nphoton.2009.172
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DOI: https://doi.org/10.1038/nphoton.2009.172
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