Low-cost spectroscopy, mobile phone-based imaging and laser-processed paper sensors are all examples of how photonics could help tackle India’s healthcare and environmental monitoring challenges.
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Graydon, O. Innovation in India. Nature Photon 13, 144–145 (2019). https://doi.org/10.1038/s41566-019-0371-0
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DOI: https://doi.org/10.1038/s41566-019-0371-0