New design strategy for broadband perfect absorber by coupling effects between metamaterial and epsilon-near-zero mode

Strong Coupling of Epsilon-Near-Zero Mode to Graphene Plasmon for Optimizing Propagation Length and Optical Field Confinement

“…For the ENZ–GP mode, it has a lower dispersion branch and an upper dispersion branch.For the lower branch, L = 11.9 μm, Γ = 0.02, and Φ = 0.23 for the lower branch and L = 4.3 μm, Γ = 0.18, and Φ = 0.72 for the upper branch, revealing that the ENZ–GP upper branch has both propagation and strong confinement characters. This analysis proves that the ENZ–GP coupling system has the novel characteristics of strong confinement and long propagation, providing a new way for the design of strong coupling systems, which can be used in the field of nanophotonic integration and communication. − …”

An ultra-broadband and wide-angle absorber based on a TiN metamaterial for solar harvesting

“…The geometrical parameters of the absorber can have an important effect on its spectral absorption performance. [41][42][43] The effect of geometry on the absorption performance of the absorber is discussed by the controlled variable method as shown in Fig. 6.…”

A multifunctional switching bidirectional optical absorber based on a titanium nitride metamaterial

“…The structural parameters of absorbing materials play a crucial role in their spectral absorption. [29][30][31] Then, we analyze the effect of different structural parameters on their absorption properties using a control variate method. In this paper, the absorbing properties of the absorbing materials are studied by adjusting only one parameter of the wave-absorbing materials, keeping other quantities unchanged.…”