Coherence of light and generation of speckle patterns in photobiology and photomedicine

Zeev Zalevsky*, Michael Belkin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


The use of diodes instead of lasers was recently suggested for phototherapeutic applications. This trend is due to economical and practical reasons and is based on the argument that lasers have no preference over diodes as light sources as the former lose their coherency upon penetrating biological tissues. This module supports this claim while providing a brief explanation to non professionals on the meaning of coherence of light as well as the physics behind the generation of speckle patterns, and the relation of these physical entities to photomedicine.

Original languageEnglish
Title of host publicationMechanisms for Low-Light Therapy VII
StatePublished - 2012
EventMechanisms for Low-Light Therapy VII - San Francisco, CA, United States
Duration: 21 Jan 201221 Jan 2012

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceMechanisms for Low-Light Therapy VII
Country/TerritoryUnited States
CitySan Francisco, CA


  • Coherence of light
  • Photobiology
  • Photomedicine
  • Speckle


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