Quadratic structure functions and scintillation

Martin A. Plonus, Shuenn Jyi Wang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The quadratic structure function (QSF) approximation by itself does not imply a tilt-only medium in which log-amplitude fluctuations are absent. When the QSF is applied to the fourth-order coherence function, the signal variance has contributions from log-amplitude fluctuations and beam wander but not beam spreading. However, the use of the QSF in the log-amplitude correlation function is limited as it can result in increasing correlation functions for weak turbulence.

Original languageEnglish (US)
Pages (from-to)570-571
Number of pages2
JournalApplied optics
Issue number4
StatePublished - Feb 15 1985

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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