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arXiv · 1812.06767

Fourier single-pixel imaging in the terahertz regime

Rongbin She·Wenquan Liu·Yuanfu Lu·Zhisheng Zhou·Guangyuan Li
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Abstract

We demonstrate Fourier single-pixel imaging in the terahertz regime. The experimental system is implemented with a photo-induced coded aperture setup, where a monolayer graphene on a high-resistance silicon substrate illuminated by a coded laser beam works as a terahertz modulator. Results show that high-quality terahertz images can be reconstructed using greatly reduced number of measurements. We further find that deep photo-induced terahertz modulation by adding a monolayer graphene on the silicon substrate and by using high laser power can significantly improve the image quality. Compared to Hadamard single-pixel imaging with re-ordered Hadamard matrix, the Fourier approach has higher image quality. We expect that this work will speed up the efficiency of single-pixel terahertz imaging and advance terahertz imaging applications.

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Rongbin She, Wenquan Liu, Yuanfu Lu, Zhisheng Zhou, Guangyuan Li. 2018-12-17. Fourier single-pixel imaging in the terahertz regime. https://doi.org/10.1063/1.5094728

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