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We analyze the steady-state transmission of high-momentum (high-$k$)electromagnetic waves through metal-semiconductor multilayer systems with lossand gain in the near-infrared (NIR). Using a semi-classical optical gain modelin conjunction with the scattering matrix method (SMM), we study indium galliumarsenide phosphide (InGaAsP) quantum wells as the active semiconductor, incombination with the metals, aluminum-doped zinc oxide (AZO) and silver (Ag).Under moderate external pumping levels, we find that NIR transmission throughAg/InGaAsP systems may be enhanced by several orders of magnitude relative tothe unpumped case, over a large angular and frequency bandwidth. Conversely,transmission enhancement through AZO/InGaAsP systems is orders of magnitudesmaller, and has a strong frequency dependence. We discuss the relativeimportance of Purcell enhancement on our results and validate analyticalcalculations based on the SMM with numerical finite-difference time domainsimulations.

optical materials express

Transmission Enhancement of High-$k$ Waves through Metal-InGaAsP  Multilayers Calculated via Scattering Matrix Method with Semi-Classical  Optical Gain