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AlN film-based Fabry–Perot cavity resonance enhanced absorption
Journal of Nanophotonics ( IF 1.5 ) Pub Date : 2021-01-01 , DOI: 10.1117/1.jnp.15.016002
Pengdi Wang 1 , Xianghua Zeng 1 , Jue Wang 2
Affiliation  

The enhanced Fabry–Perot (F–P) resonance caused by adding a layer of AlN film to different metal substrates (AlN/metals) was analyzed by controlling the thickness of AlN film. The obtained results using the finite-difference time-domain (FDTD) method show that the absorption capacity of visible light was changed by the film interference effect. Then, the light absorption of Au/AlN/Fe (AAF) trilayer structures exhibits that the addition of the ultra-thin Au layer to the AlN/Fe surface improves the light absorption, the color gamut, and purity. Both the transfer-matrix theory and Fresnel–Airy equation were used to compare the FDTD simulations, the calculations show that all the results are consistent. Systematic analyses revealed that AlN film as an F–P resonant cavity is a promising strategy for optical applications, and AAF is an ideal structure in the applications to optical filters, no-ink printing, and optical anti-counterfeiting.

中文翻译:

基于AlN薄膜的法布里-珀罗腔共振增强了吸收

通过控制AlN膜的厚度,分析了通过在不同的金属基板(AlN /金属)上添加AlN膜层而导致的Fabry-Perot(FP)共振增强。使用有限差分时域(FDTD)方法获得的结果表明,可见光的吸收能力因薄膜干涉效应而改变。然后,Au / AlN / Fe(AAF)三层结构的吸光性表明,向AlN / Fe表面添加超薄Au层可改善吸光性,色域和纯度。转移矩阵理论和菲涅耳-艾里方程均用于比较FDTD仿真,计算结果表明所有结果都是一致的。系统分析表明,AlN膜作为F–P谐振腔是光学应用的有前途的策略,
更新日期:2021-01-10
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