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published on October 24, 2025
Problèmes ouverts et progrès récents en géométrie spectrale hyperbolique
By Frédéric Naud
Seize the Moments: Enhancing Moment Estimation for Subdiffraction Incoherent Imaging
By Mankei Tsang
Appears in collection : PRACQSYS 2018: Principles and Applications of Control in Quantum Systems
Inspired by quantum metrology, I propose a far-field imaging method called spatial-mode demultiplexing (SPADE) to estimate the moments of an arbitrary subdiffraction object. The estimation errors of SPADE can be lower than the Cramer-Rao bounds for direct imaging by orders of magnitude. Realizable with linear optics and photon counting, SPADE should find applications in both observational astronomy and fluorescence microscopy, such as object size and shape estimation.
