Rapid Imaging of Pulsed Terahertz Radiation with Spatial Light Modulators and Neural Networks

Rapid Imaging of Pulsed Terahertz Radiation with Spatial Light Modulators and Neural Networks

We report the first use of a convolutional neural network for terahertz (THz) imaging combined with a single-pixel camera to achieve high quality hyperspectral THz imaging 10× faster than the current commercial systems, with faster potential only limited by noise. Imaging with a spatial light modula...

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Veröffentlicht in:ACS photonics 2021-11, Vol.8 (11), p.3150-3155
Hauptverfasser: Stantchev, Rayko Ivanov, Li, Kaidi, Pickwell-MacPherson, Emma
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creator Stantchev, Rayko Ivanov
Li, Kaidi
Pickwell-MacPherson, Emma
description We report the first use of a convolutional neural network for terahertz (THz) imaging combined with a single-pixel camera to achieve high quality hyperspectral THz imaging 10× faster than the current commercial systems, with faster potential only limited by noise. Imaging with a spatial light modulator (SLM) relies on projecting a set of spatial patterns onto an object and recording the transmission with a single-pixel detector, and an optical delay unit (ODU) is used to obtain the terahertz time-of-flight information. A key breakthrough in this work is to synchronize the equipment to not need any time to instruct the ODU to move while projecting the patterns.
doi_str_mv 10.1021/acsphotonics.1c00634
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title Rapid Imaging of Pulsed Terahertz Radiation with Spatial Light Modulators and Neural Networks
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