Super-resolved phase measurements at the shot noise limit by parity measurement

L. Cohen, D. Istrati, L. Dovrat, H. S. Eisenberg

Research output: Contribution to journalArticlepeer-review


Classically, the resolution of optical measurements is limited by the Rayleigh limit and their sensitivity by the shot noise limit. However, non-classical measurements can surpass these limits. Measuring the photon number parity using a photon-number resolving detector, super resolved phase measurements up to 144 better than the Rayleigh limit are presented, with coherent states of up to 4,200 photons on average. An additional measurement that can be implemented with standard single-photon detectors is proposed and demonstrated. With this scheme, super resolution at the shot noise limit is demonstrated with coherent states of up to 200 photons on average.

Original languageAmerican English
Pages (from-to)11945-11953
Number of pages9
JournalOptics Express
Issue number10
StatePublished - 2014

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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