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DOE OSTI · 2316121

Wavelength domain spatial frequency modulation imaging: enabling fiber optic delivery and detection

Czerski, John·Scarbrough, Daniel·Adams, Daniel·Field, Jeffrey J.·Bartels, Randy·Reeves, Robert V.·Squier, Jeff
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Abstract

Spatial frequency modulation imaging (SPIFI) provides a simple architecture for modulating an extended illumination source that is compatible with single pixel imaging. We demonstrate wavelength domain SPIFI (WD-SPIFI) by encoding time-varying spatial frequencies in the spectral domain that can produce enhanced resolution images, like its spatial domain counterpart, spatial domain (SD) SPIFI. However, contrary to SD-SPIFI, WD-SPIFI enables remote delivery by single mode fiber, which can be attractive for applications where free-space imaging is not practical. Finally, we demonstrate a cascaded system incorporating WD-SPIFI in-line with SD-SPIFI enabling single pixel 2D imaging without any beam or sample scanning.

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Czerski, John, Scarbrough, Daniel, Adams, Daniel, Field, Jeffrey J., Bartels, Randy, Reeves, Robert V., Squier, Jeff. 2023-11-15. Wavelength domain spatial frequency modulation imaging: enabling fiber optic delivery and detection. https://doi.org/10.1364/ao.501840

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