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Incoherent Active Convolved Illumination Enhances the Signal-to-Noise Ratio for Shot Noise: Experimental Evidence

Adams, Wyatt and Ghoshroy, Anindya and Güney, Durdu Ö. (2022) Incoherent Active Convolved Illumination Enhances the Signal-to-Noise Ratio for Shot Noise: Experimental Evidence. Physical Review Applied, 18 (6). Art. No. 064080. ISSN 2331-7019. doi:10.1103/physrevapplied.18.064080.

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Imaging is indispensable for nearly every field of science, engineering, technology, and medicine. However, measurement noise and stochastic distortions pose fundamental limits to accessible spatiotemporal information despite impressive tools such as structured-illumination microscopy (SIM), stochastic optical reconstruction microscopy or photoactivated localization microscopy (STORM or PALM), and stimulated-emission-depletion (STED) microscopy. How to combat this challenge ideally has been an open question for decades. Inspired by a virtual-gain technique to compensate losses in metamaterials, active convolved illumination (ACI) has recently been proposed to significantly improve the signal-to-noise ratio and hence the data acquisition. In this technique, the light pattern of the object is superimposed with a correlated auxiliary pattern, the function of which is to reverse the adverse effects of losses, noise, and random distortion based on their spectral characteristics. Despite enormous implications in statistics, any experimental evidence verifying the theory of this novel technique has been lacking to date. We find experimentally that ACI boosts not just the resolution limit and image contrast but also the resistance to pixel saturation. The results confirm the previous theories and may open up horizons in a wide range of disciplines from atmospheric sciences, seismology, biology, statistical learning, finance, and information processing to quantum noise beyond the fundamental boundaries.

Item Type:Article
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URLURL TypeDescription
Adams, Wyatt0000-0003-2956-5729
Güney, Durdu Ö.0000-0002-6734-7469
Additional Information:This work was supported by the Office of Naval Research (N00014-15-1-2684) and the National Science Foundation (EAR-2221730). We would like to thank Christopher Middlebrook at Michigan Technological University for fruitful discussions.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-15-1-2684
Issue or Number:6
Record Number:CaltechAUTHORS:20230125-514337900.6
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:118930
Deposited By: Research Services Depository
Deposited On:17 Feb 2023 23:13
Last Modified:17 Feb 2023 23:13

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