Kosger Ali Cahit, Ghobadi Amir, Rashed Alireza Rahimi, Caglayan Humeyra, Ozbay Ekmel
Opt Lett. 2021 Jul 15;46(14):3464-3467. doi: 10.1364/OL.430985.
In this paper, the generation of additive red-green-blue (RGB) colors in reflectance mode with near unity amplitude is demonstrated. For this purpose, a multilayer structure made of metal-insulator-metal-semiconductor-insulator stacks is designed to achieve >0.9 reflection peaks with full-width-at-half-maximum values <0.3. The proposed design also shows near zero reflection in off-resonance spectral ranges, and this, in turn, leads to high color purity. The optimized designs are fabricated, and simulation and theoretical results are verified with characterization findings. This work demonstrates the potential of multilayer tandem cavity designs in the realization of lithography-free large-scale compatible functional optical coatings.
本文展示了在反射模式下以接近单位幅度生成加性红绿蓝（RGB）颜色的方法。为此，设计了一种由金属-绝缘体-金属-半导体-绝缘体堆叠组成的多层结构，以实现反射峰值>0.9，半高宽值<0.3。所提出的设计在非共振光谱范围内也显示出接近零的反射，这反过来又导致了高色纯度。制作了优化设计，并通过表征结果验证了模拟和理论结果。这项工作展示了多层串联腔设计在实现无光刻大规模兼容功能光学涂层方面的潜力。
