| There are special optical modes in micro-nano scale structure,such as optical Tamm states,surface plasmon,bulk plasmon,etc.By studying the physical resonance mechanism of these modes,the photon local characteristics can be optimized.The optical Tamm state,also known as Tamm plasmon,is a new type of optical mode,common at the interface of metal and multilayer photonic crystals.It can be excited simultaneously by the TE and TM polarization light,and can be carried out without a special degree of incidence.However,the traditional Tamm structure is composed of metal and photonic crystals,which has a limiting effect on the excitation environment,and the photon local field is located inside the multilayer Tamm structure,which weakens the application value of tam and other ioners.The main work of this paper utilizes a coupled hybrid of optical Tamm states with guide mode resonance and defect mode,explore the optical pattern and the physical mechanism,optimize the photonic crystal multilayer Tamm structure,and extends to the same multilayer structure composed of metal/medium of hyperbolic metamaterials optical characteristics,the current work is summarized as follows:1.A hybrid Tamm structure composed of a grating layer and a metal-photonic crystal heterostructure-metal（M-PCH-M）was proposed,and it was found that there is a conductive Two modes of guide mode resonance（GMR）and optical Tamm state（OTS）,and a high-performance tunable multi-channel absorber in the near-infrared band is designed,and four perfect absorption peaks from the above two resonance modes are realized.We used transmission matrix theory（TMM）to analyze the spectral case of the proposed structure.Also,the strong coupling between the two modes can arise by modulating the grating cycle.It can also actively modulate GMR based absorption peaks by adjusting the incident polarization angle or the graphene chemical potential.Based on this structure,its performance as a refractive index sensor is also investigated.By studying the performance under different structural parameters,the optimal sensitivity is 950 nm/RIU,and the figure of merit（Fo M）is161 RIU-1.2.A novel multi-layer Tamm structure composed of single-layer graphene and multilayer photonic crystals with defective layer is proposed,and it is found that Tamm plasmon polariton（TPP）can be excited at the top graphene interface,which can be strongly interact with the defect mode in this coupled structure.The spectral properties of the structure can be passively modulated by regulating the number of multilayer photonic crystal layers and actively by the chemical potential and light incident angle of graphene,thus achieving tunable bimodal perfect absorption with strong interactions.The resonance wavelength of the defect mode is more sensitive to the thickness and the refractive index change of the defect layer,and the simulation analyzes its possible application to the sensor that detects the refractive index change caused by the material changes.Structural parameters such as environmental layer and angle of incidence,the optimal performance of the refractive index sensor is 1.01THz/RIU and Fo M=631.2 RIU-1.3.Based on the dispersion characteristics of multilayer Tamm structure,a super-resolution lithography technique based on metal-medium multilayer structure is proposed.Super-resolution lithography can be achieved based on the hyperbolic dispersion properties of hyperbolic hyperamaterial（HMM）.Simulation results show that the lithography half-cycle is 32.7nm（～λ/11.12）when the mask grating is 145nm.Moreover,the optical transfer function（OTF）of HMM is obtained by rigorous coupled wave analysis（RCWA）theory,the OTF pass band window adjustment and optimization can be realized by changing the thickness of the metal,the medium and the log of the unit period.Finally,the theoretically feasible and better lithography effect is obtained.At this time,the 5-level secondary element is used with the mask grating period of 360 nm,obtaining the interference lithography effect of23.4 nm（～λ/15.5）. |
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