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Proceedings Paper

Super-resolution enhancement with active convolved illumination and correlations
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Paper Abstract

The promise of high-resolution imaging beyond the diffraction limit has been a core motivation for research in the fields of metamaterials and plasmonics. However, the problems with material losses have quelled some of the enthusiasm which once existed. Here, we review our recent approach relying on imaging theory and correlations to push the limits of super-resolution imaging in the presence of losses and noise. Starting with plasmon injection scheme for compensating losses, we subsequently extended the same principle to a broad range of near-field and far-field imaging systems involving both coherent and incoherent light, and hence termed this approach more encompassing active convolved illumination" (ACI). In ACI a relatively narrow range of spatial frequencies are amplified at a time. Since the total power in the active image does not change significantly, the spectral SNR is significantly improved in the region of amplification. This improves the overall resolution of the images. We also present potential extension of ACI into different research domains including atmospheric imaging, time-domain spectroscopy, and quantum computing.

Paper Details

Date Published: 5 September 2019
PDF: 9 pages
Proc. SPIE 11081, Active Photonic Platforms XI, 1108128 (5 September 2019); doi: 10.1117/12.2529417
Show Author Affiliations
Durdu Ö. Güney, Michigan Technological Univ. (United States)
Wyatt Adams, Michigan Technological Univ. (United States)
Anindya Ghoshroy, Michigan Technological Univ. (United States)

Published in SPIE Proceedings Vol. 11081:
Active Photonic Platforms XI
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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