scholarly journals Multi-scaled diffusion-approximation. Applications to wave propagation in random media.

1997 ◽  
Vol 1 ◽  
pp. 183-206 ◽  
Author(s):  
Josselin Garnier
Keyword(s):  
Wave Propagation ◽  
Diffusion Approximation ◽  
Random Media

scholarly journals Anomalous Anderson localization behavior in gain-loss balanced non-Hermitian systems

Nanophotonics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 443-452
Author(s):  
Tianshu Jiang ◽  
Anan Fang ◽  
Zhao-Qing Zhang ◽  
Che Ting Chan
Keyword(s):  
Wave Propagation ◽  
Electromagnetic Waves ◽  
Anderson Localization ◽  
Random Media ◽  
Normal Incidence ◽  
Disordered Media ◽  
One Dimensional ◽  
Gain Loss ◽  
The Waves ◽  
Localization Behavior

AbstractIt has been shown recently that the backscattering of wave propagation in one-dimensional disordered media can be entirely suppressed for normal incidence by adding sample-specific gain and loss components to the medium. Here, we study the Anderson localization behaviors of electromagnetic waves in such gain-loss balanced random non-Hermitian systems when the waves are obliquely incident on the random media. We also study the case of normal incidence when the sample-specific gain-loss profile is slightly altered so that the Anderson localization occurs. Our results show that the Anderson localization in the non-Hermitian system behaves differently from random Hermitian systems in which the backscattering is suppressed.

WAVE PROPAGATION IN RANDOM MEDIA

1994 ◽  
pp. 317-C16
Author(s):  
Michael Worthington ◽  
R.G. Pratt ◽  
P.R. Williamson ◽  
P.E. Harris ◽  
R.E. White ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Random Media
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