Alternate formulation of enhanced backscattering as phase conjugation and diffraction: Derivation and experimental observation

Jeremy D. Rogers, Valentina Stoyneva, Vladimir Turzhitsky, Nikhil N. Mutyal, Prabhakar Pradhan, Ilker R. Çapoǧlu, Vadim Backman

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Enhanced backscattering (EBS), also known as weak localization of light, is derived using the Huygens-Fresnel principle and backscattering is generally shown to be the sum of an incoherent baseline and a phase conjugated portion of the incident wave that forms EBS. The phase conjugated portion is truncated by an effective aperture described by the probability function P(s) of coherent path-pair separations. P(s) is determined by the scattering properties of the medium and so characterization of EBS can be used for metrology of scattering materials. A three dimensional intensity peak is predicted in free space at a point conjugate to the source and is experimentally observed.

Original languageEnglish (US)
Pages (from-to)11922-11931
Number of pages10
JournalOptics Express
Volume19
Issue number13
DOIs
StatePublished - Jun 20 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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