Frequency bandwidth of light focused through turbid media

Frerik van Beijnum, E.G. van Putten, Aart Lagendijk, Allard Mosk

Research output: Contribution to journalArticleAcademicpeer-review

41 Citations (Scopus)

Abstract

We study the effect of frequency detuning on light focused through turbid media. By shaping the wavefront of the incident beam light is focused through an opaque scattering layer. When detuning the laser we observe a gradual decrease of the focus intensity, while the position, size,and shape of the focus remain the same within experimental accuracy. The frequency dependence of the focus intensity follows a measured speckle correlation function. We support our experimental findings with calculations based on transport theory. Our results imply wavefront shaping methods can be generalized to allow focusing of optical pulses in turbid media.
Original languageEnglish
Pages (from-to)373-375
Number of pages3
JournalOptics letters
Volume36
Issue number3
DOIs
Publication statusPublished - 2011

Keywords

  • METIS-281042
  • IR-104396

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