Maximal energy transport through disordered media with the implementation of transmission eigenchannels

Moonseok Kim, Youngwoon Choi, Changhyeong Yoon, Wonjun Choi, Jaisoon Kim, Q. Han Park, Wonshik Choi

Research output: Contribution to journalArticle

160 Citations (Scopus)

Abstract

Complex media such as random nanostructures and biological tissues induce multiple wave scattering, which interrupts the propagation of waves and attenuates energy transmission. Even for a highly disordered medium, however, it is possible in principle to enhance the delivery of energy to the far side of the medium. Similar to the resonator modes in linear optical cavities, specific modes called eigenchannels exist in a disordered medium and have extraordinarily high transmission. In this Letter, we report the first experimental realization of transmission eigenchannels in a disordered medium and show that an eigenchannel transports 3.99 times more energy than uncontrolled waves, which is the best experimental record reported to date. Our study will open up new avenues for enhancing light energy delivery to biological tissues for medical purposes and for controlling the lasing threshold in random lasers.

Original languageEnglish
Pages (from-to)581-585
Number of pages5
JournalNature Photonics
Volume6
Issue number9
DOIs
Publication statusPublished - 2012 Sep

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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