Frequency division multiplexing THz light field imaging

Xianshun Ming; Willie J. Padilla; Liqun Sun

doi:10.1117/12.2282078

23 August 2017 Frequency division multiplexing THz light field imaging

Xianshun Ming, Willie J. Padilla, Liqun Sun

Author Affiliations +

Proceedings Volume 10383, Terahertz Emitters, Receivers, and Applications VIII; 103830V (2017) https://doi.org/10.1117/12.2282078
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

We present a single pixel frequency division multiplexing imaging system with two metamaterial spatial light modulators (SLMs) for THz light field imaging. One SLM is used for slicing/modulating the 4D light field from various sub-apertures, while the second one together with a single pixel detector to implement 2D multiplexing measurement. This system is in essential a programming aperture in the frequency domain of carrier signals in our categorization of the traditional light field acquisition systems. We propose a prototype adaption design with available elements for THz imaging. Besides, we present the frequency selection method and reconstruction algorithm for square wave modulation/carrier signals for at most 4096-voxel light field dataset.

Citation Download Citation

Xianshun Ming, Willie J. Padilla, and Liqun Sun "Frequency division multiplexing THz light field imaging", Proc. SPIE 10383, Terahertz Emitters, Receivers, and Applications VIII, 103830V (23 August 2017); https://doi.org/10.1117/12.2282078

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