Implementing transmission eigenchannels of disordered media by a binary-control digital micromirror device

Donggyu Kim, Wonjun Choi, Moonseok Kim, Jungho Moon, Keumyoung Seo, Sanghyun Ju, Wonshik Choi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We report a method for measuring the transmission matrix of a disordered medium using a binary-control of a digital micromirror device (DMD). With knowledge of the measured transmission matrix, we identified the transmission eigenchannels of the medium. We then used binary control of the DMD to shape the wavefront of incident waves and to experimentally couple light to individual eigenchannels. When the wave was coupled to the eigenchannel with the largest eigenvalue, in particular, we were able to achieve about two times more energy transmission than the mean transmittance of the medium. Our study provides an elaborated use of the DMD as a high-speed wavefront shaping device for controlling the multiple scattering of waves in highly scattering media.

Original languageEnglish
Pages (from-to)35-39
Number of pages5
JournalOptics Communications
Volume330
DOIs
Publication statusPublished - 2014 Nov 1

Keywords

  • Binary eigenchannel
  • Binary-control digital micromirror device
  • Energy transfer
  • Multiple scattering
  • Turbid medium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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