2016/08/31 by Mankei Tsang · 1 citation
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Advanced Fluorescence Microscopy Techniques #Advanced Optical Sensing Technologies #Coherent diffraction imaging #Diffraction #Digital Holography and Microscopy #Interferometry #Multiplexing #Photon #Photon counting #Quantum imaging #Single shot #physics.optics #quant-ph
paper · pdf · doi:10.1088/1367-2630/aa60ee
published as New Journal of Physics 19, 023054 (2017) · v1: first draft. v2: added a numerical example and made minor changes. v3: minor adjustments, submitted. v4: published in NJP. 18 pages, 2 tables, and 6 figures
openalex created_date 2016/09/30 · openalex publication_date 2017/02/16 · arxiv created 2017/02/28 · arxiv updated 2017/03/01 · openalex updated_date 2026/08/05
I propose a spatial-mode demultiplexing (SPADE) measurement scheme for the far-field imaging of spatially incoherent optical sources. For any object too small to be resolved by direct imaging under the diffraction limit, I show that SPADE can estimate its second or higher moments much more precisely than direct imaging can fundamentally do in the presence of photon shot noise. I also prove that SPADE can approach the optimal precision allowed by quantum mechanics in estimating the location and scale parameters of a subdiffraction object. Realizable with far-field linear optics and photon counting, SPADE is expected to find applications in both fluorescence microscopy and astronomy.