Transmission enhancement in loss-gain multilayers by resonant suppression of reflection

作     者：Denis V. Novitsky Vladimir R. Tuz Sergey L. Prosvirnin Andrei V. Lavrinenko Andrey V. Novitsky 

作者机构：B. I. Stepanov Institute of Physics National Academy of Sciences of Belarus 68 Nezavisimosti Avenue Minsk 220072 Belarus ITMO University 49 Kronverksky Pr. St. Petersburg 197101 Russia International Center of Future Science State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Str. Changchun 130012 China Institute of Radio Astronomy of National Academy of Sciences of Ukraine 4 Mystetstv Street Kharkiv 61002 Ukraine School of Radio Physics V.N. Karazin Kharkiv National University 4 Svobody sq. Kharkiv 61022 Ukraine DTU Fotonik Technical University of Denmark Ørsteds Plads 343 DK-2800 Kongens Lyngby Denmark Department of Theoretical Physics and Astrophysics Belarusian State University 4 Nezavisimosti Avenue Minsk 220030 Belarus 

出 版 物：《Physical Review B》 (Phys. Rev. B)

年 卷 期：2017年第96卷第23期

页      面：235129-235129页

核心收录：

基　　金：Belarusian Republican Foundation for Fundamental Research, BRFFR, (F16K-016, F16R-049) Belarusian Republican Foundation for Fundamental Research, BRFFR Villum Fonden Russian Science Foundation, RSF, (17-72-10098) Russian Science Foundation, RSF State Fund for Fundamental Research of Ukraine, SFFR, (F73) State Fund for Fundamental Research of Ukraine, SFFR 

主　　题：Hyperbolic metamaterials Light-matter interaction Nanophotonics Nonlinear optics Photonic crystals Plasmonics Quantum dots Effective medium approach Finite-difference time-domain method Semiclassical methods Transfer matrix method 

摘      要：Using the transfer-matrix approach and solving time-domain differential equations, we analyze the loss compensation mechanism in multilayer systems composed of an absorbing transparent conductive oxide and dielectric doped with an active material. We reveal also another regime with the possibility of enhanced transmission with suppressed reflection originating from the resonant properties of the multilayers. For obliquely incident and evanescent waves, such enhanced transmission under suppressed reflection turns into the reflectionless regime, which is similar to that observed in the PT-symmetric structures, but does not require PT symmetry. We infer that the reflectionless transmission is due to the full loss compensation at the resonant wavelengths of the multilayers.