Sub-Rayleigh resolution by phase imaging

Cotte Y., Toy M. F., Shaffer E., Pavillon N., Depeursinge C.

Optics Letters, vol.35, no.13, pp.2176-2178, 2010 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 13
  • Publication Date: 2010
  • Doi Number: 10.1364/ol.35.002176
  • Journal Name: Optics Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2176-2178
  • Istanbul Medipol University Affiliated: No


We report the experimental observation of systematically occurring phase singularities in coherent imaging of subRayleigh distanced objects. A theory that relates the observation to the sub-Rayleigh distance is presented and compared with experimental measurements. As a consequence, the limit of resolution with coherent illumination is extended by a factor of 1.64x. © 2010 Optical Society of America.