2024/07/29 by Li, Liming
#FOS: Physical sciences #Optics (physics.optics)
paper · doi:10.48550/arxiv.2407.20460
In a lens-assisted imaging scheme with speckle illumination, the spatial resolution can surpass the Rayleigh resolution limit by a factor of √(2) with second-order auto-correlation of light intensity. In this work, integrated with the nonlinear structured illumination after the speckle sinusoidally modulated, the second-order auto-correlation imaging can surpass the Rayleigh resolution limit by a factor of 2+√(2). In theory, a higher spatial resolution with the surpassing factor N+√(N) is available by the N-order auto-correlation measurement. Our imaging scheme combined two super-resolution technologies not only enhances the spatial resolution of the lens-assisted imaging, but also promotes the practicality of the intensity correlation imaging.