Coherent superresolution imaging via grating-based illumination

Jeffrey P. Wilde, Joseph W. Goodman, Yonina C. Eldar, Yuzuru Takashima

Research output: Research - peer-reviewArticle

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Abstract

This paper describes two superresolution coherent imaging techniques, which both use a diffraction grating to direct high spatial frequency information that would otherwise be lost through the imaging system pupil. The techniques employ digital holography to measure the optical field in the image plane and rely on capturing multiple holograms with the illumination condition altered between exposures. In one case, we used linear signal processing to separate aliased spectral regions, while in the second case we directly measured spectral regions without aliasing. In both cases, we stitched together higher-bandwidth synthetic aperture spectra and used them to reconstruct superresolution images. Our experimental results validated the approaches, demonstrating a resolution gain factor of approximately 2.5.

LanguageEnglish (US)
PagesA79-A88
JournalApplied Optics
Volume56
Issue number1
DOIs
StatePublished - Jan 1 2017

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illumination
gratings
digital techniques
synthetic apertures
pupils
gratings (spectra)
imaging techniques
holography
signal processing
bandwidth

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Wilde, J. P., Goodman, J. W., Eldar, Y. C., & Takashima, Y. (2017). Coherent superresolution imaging via grating-based illumination. Applied Optics, 56(1), A79-A88. DOI: 10.1364/AO.56.000A79

Coherent superresolution imaging via grating-based illumination. / Wilde, Jeffrey P.; Goodman, Joseph W.; Eldar, Yonina C.; Takashima, Yuzuru.

In: Applied Optics, Vol. 56, No. 1, 01.01.2017, p. A79-A88.

Research output: Research - peer-reviewArticle

Wilde, JP, Goodman, JW, Eldar, YC & Takashima, Y 2017, 'Coherent superresolution imaging via grating-based illumination' Applied Optics, vol 56, no. 1, pp. A79-A88. DOI: 10.1364/AO.56.000A79
Wilde JP, Goodman JW, Eldar YC, Takashima Y. Coherent superresolution imaging via grating-based illumination. Applied Optics. 2017 Jan 1;56(1):A79-A88. Available from, DOI: 10.1364/AO.56.000A79
Wilde, Jeffrey P. ; Goodman, Joseph W. ; Eldar, Yonina C. ; Takashima, Yuzuru. / Coherent superresolution imaging via grating-based illumination. In: Applied Optics. 2017 ; Vol. 56, No. 1. pp. A79-A88
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