Wave propagation through disordered media without backscattering and intensity variations

Light, Science & Applications
K G MakrisStefan Rotter

Abstract

A fundamental manifestation of wave scattering in a disordered medium is the highly complex intensity pattern the waves acquire due to multi-path interference. Here we show that these intensity variations can be entirely suppressed by adding disorder-specific gain and loss components to the medium. The resulting constant-intensity waves in such non-Hermitian scattering landscapes are free of any backscattering and feature perfect transmission through the disorder. An experimental demonstration of these unique wave states is envisioned based on spatially modulated pump beams that can flexibly control the gain and loss components in an active medium.

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Citations

Mar 7, 2019·Light, Science & Applications·Yanzhong LiuMing Li
Apr 10, 2019·Nature Materials·Ş K ÖzdemirL Yang
May 26, 2018·Physical Review Letters·Sunkyu YuNamkyoo Park
Oct 21, 2020·Physical Review. E·I KomisK G Makris
Feb 28, 2021·Scientific Reports·Denis V NovitskyAlexander S Shalin
May 8, 2021·Physical Review Letters·Jose D H RiveroLi Ge
Jun 18, 2021·Physical Review. E·O V ShramkovaG P Tsironis
Jul 8, 2020·Optics Letters·Dmitry A Zezyulin, Vladimir V Konotop
Jan 13, 2021··A. F. TzortzakakisK. G. Makris
Jan 13, 2021··S. SardelisZ. H. Musslimani
Sep 12, 2017··K. G. MakrisA. Brandstötter

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