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On-chip ultra-compact solution

Reducing the footprint of optical spectrometers is a critical requirement for many in-field applications. Now, a single black phosphorus photodetector with a wavelength-scale size enables mid-infrared computational spectrometry.

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Fig. 1: Schematic of wavelength-scale spectrometer based on black phosphorus.


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Correspondence to Vicente Durán.

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Durán, V. On-chip ultra-compact solution. Nat. Photon. 15, 553–554 (2021).

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