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

• DOI: 10.1103/physrevapplied.18.064080
• Publication Date: 2022-12-26T15:04:15Z
• Authors: Wyatt Adams; Anindya Ghoshroy; Durdu Ö. Güney
• Keywords: Distortion (music)

Imaging is indispensable for nearly every field of science, engineering, technology, and medicine. However, measurement noise stochastic distortions pose fundamental limits to accessible spatiotemporal information despite impressive tools such as SIM, PALM/STORM, STED microscopy. How combat this challenge ideally has been an open question decades. Inspired by a "virtual gain" technique compensate losses in metamaterials, "active convolved illumination" recently proposed significantly improve the signal-to-noise ratio, hence data acquisition. In technique, light pattern object superimposed with correlated auxiliary pattern, function which reverse adverse effect random distortion based on their spectral characteristics. Despite enormous implications statistics, experimental realization novel lacking date. Here, we present first demonstration. We find that active illumination does not only boost resolution limit image contrast, but also resistance pixel saturation. The results confirm previous theories opens up new horizons wide range disciplines from atmospheric sciences, seismology, biology, statistical learning, processing quantum beyond boundaries.