1.Crete Center for Quantum Complexity and Nanotechnology, Department of Physics, University of Crete, Heraklion 71003, Greece
2.Institute for Theoretical Physics, Vienna University of Technology (TU-Wien), Vienna 1040, Austria
3.Department of Mathematics, Florida State University, Tallahassee, FL 32306, USA
KG Makris, Email: makris@physics.uoc.gr
纸质出版日期:2017-09,
网络出版日期:2017-03-06,
收稿日期:2016-11-09,
修回日期:2017-02-16,
录用日期:2017-02-27
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Wave propagation through disordered media without backscattering and intensity variations[J]. LSA, 2017,6(3).
Makris, K. G. et al. Wave propagation through disordered media without backscattering and intensity variations. Light: Science & Applications, 6, e17035 (2017).
Wave propagation through disordered media without backscattering and intensity variations[J]. LSA, 2017,6(3). DOI: 10.1038/lsa.2017.35.
Makris, K. G. et al. Wave propagation through disordered media without backscattering and intensity variations. Light: Science & Applications, 6, e17035 (2017). DOI: 10.1038/lsa.2017.35.
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.
Anderson localisationcomplex medianon-Hermitian physicsscattering
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