Reference-less measurement of the transmission matrix of a highly scattering material using a DMD and phase retrieval techniques

Angélique Drémeau, Antoine Liutkus, David Martina, Ori Katz, Christophe Schülke, Florent Krzakala, Sylvain Gigan, Laurent Daudet

Research output: Contribution to journalArticlepeer-review

191 Scopus citations

Abstract

This paper investigates experimental means of measuring the transmission matrix (TM) of a highly scattering medium, with the simplest optical setup. Spatial light modulation is performed by a digital micromirror device (DMD), allowing high rates and high pixel counts but only binary amplitude modulation. On the sensor side, without a reference beam, the CCD camera provides only intensity measurements. Within this framework, this paper shows that the TM can still be retrieved, through signal processing techniques of phase retrieval. This is experimentally validated on three criteria : quality of prediction, distribution of singular values, and quality of focusing.

Original languageAmerican English
Pages (from-to)11898-11911
Number of pages14
JournalOptics Express
Volume23
Issue number9
DOIs
StatePublished - 4 May 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Optical Society of America.

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