We present a hybrid Tamm system targeting the tunable multichannel absorber. The proposed optical absorber is analyzed and investigated by using the transfer matrix method (TMM). The numerical and theoretical studies show that the four perfect absorption peaks are generated by two types of resonant modes excited in the structure, which can be reasonably explained by the guided-mode resonance (GMR) and optical Tamm state (OTS). More importantly, the strong interaction between the two modes gives rise to mode hybridization by adjusting the grating period. Furthermore, the active modulation of the GMR-based peak can be manipulated discretely by tuning the polarization angle or continuously by changing the chemical potential of graphene. The presented optical absorption filter will meet high level of effectiveness in developing high-performance optoelectronic devices.

我们提出了一种针对可调多通道吸收器的混合 Tamm 系统。使用传递矩阵法 (TMM) 分析和研究了所提出的光吸收体。数值和理论研究表明，四个完美的吸收峰是由结构中激发的两种谐振模式产生的，这可以用导模谐振（GMR）和光学Tamm态（OTS）来合理解释。更重要的是，两种模式之间的强相互作用通过调整光栅周期产生模式杂化。此外，基于 GMR 的峰的主动调制可以通过调整极化角来离散控制，也可以通过改变石墨烯的化学势来连续控制。