The optimal system for sub-wavelength point source localization

David Mendlovic*, Gal Shabtay, Zeev Zalevsky, Stephen G. Lipson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Sub-wavelength super-resolving systems are known to waste light. The aim of this communication is to analyze what is the optimal resolving system for sub-wavelength structures. Two criteria for optimization are considered whereas the optimization analysis is carried in the spirit of entropy consideration: Uniform light efficiency and minimal number of photons required for the resolving process. For large number of possible positions, the first process converges to the second one. A Gedanken experiment showing that the optimal positioning estimator can be implemented is suggested.

Original languageEnglish
Pages (from-to)311-315
Number of pages5
JournalOptics Communications
Issue number4-6
StatePublished - 1 Nov 2001


  • Entropy
  • Optimal super-resolving
  • Super-resolution


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