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Terahertz imaging

Compressing onto a single pixel

A breakthrough in metamaterial-based spatial light modulator design makes single-pixel real-time imaging practical by using compressive sensing to dispense with slow mechanical scanning.

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Figure 1: Schematic of single-pixel terahertz imaging with an active SLM.

© 2014 NPG

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Correspondence to Derek Abbott.

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Withayachumnankul, W., Abbott, D. Compressing onto a single pixel. Nature Photon 8, 593–594 (2014). https://doi.org/10.1038/nphoton.2014.167

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