G-Fresnel smartphone spectrometer.

Zhang, Chenji; Cheng, Gong; Edwards, Perry; Zhou, Ming-Da; Zheng, Siyang; Liu, Zhiwen · Lab Chip · 2016

basic_science · Level V

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Abstract

We report a smartphone spectrometer with nanometer resolution working in the visible range. A G-Fresnel device with the dual functionality of focusing and dispersion is used to enable miniaturization. Proof of principle application to Bradford assay of protein concentration is also demonstrated.

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