2016/12/09 by Konstantinos G. Makris, Konstantinos G Makris, Andre Brandstötter +4
Physics and Astronomy · #Forward scatter #Intensity (physics) #Nonlinear Photonic Systems #Quantum Mechanics and Non-Hermitian Physics #Random lasers and scattering media #Scattering #Transmission (telecommunications) #Transmission loss #Wave propagation #cond-mat.dis-nn #physics.optics
paper · pdf · doi:10.1038/lsa.2017.35
published as Light Sci. Appl. 6, e17035 (2017) · 34 pages, 4 figures, including a supplemental material section; see also conference paper for Frontiers in Optics 2016 (doi.org/10.1364/FIO.2016.JTh2A.4), submitted on 25th of May, 2016
arxiv created 2016/12/09 · openalex created_date 2017/01/06 · openalex publication_date 2017/03/06 · arxiv updated 2017/09/15 · openalex updated_date 2026/08/06
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.