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Design of High Efficient Mid‐Wavelength Infrared Polarizer on ORMOCHALC Polymer
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-03-22 , DOI: 10.1002/mame.202000033 Md Didarul Islam 1 , Jun Oh Kim 2 , Yeongun Ko 3 , Zahyun Ku 4 , Darryl A. Boyd 5 , Evan M. Smith 6 , Vinh Q. Nguyen 5 , Jason D. Myers 5 , Colin C. Baker 5 , Woohong Kim 5 , Jasbinder S. Sanghera 5 , David A. Czaplewski 7 , Augustine M. Urbas 4 , Jan Genzer 3 , Jong E. Ryu 1
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-03-22 , DOI: 10.1002/mame.202000033 Md Didarul Islam 1 , Jun Oh Kim 2 , Yeongun Ko 3 , Zahyun Ku 4 , Darryl A. Boyd 5 , Evan M. Smith 6 , Vinh Q. Nguyen 5 , Jason D. Myers 5 , Colin C. Baker 5 , Woohong Kim 5 , Jasbinder S. Sanghera 5 , David A. Czaplewski 7 , Augustine M. Urbas 4 , Jan Genzer 3 , Jong E. Ryu 1
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While an organically modified chalcogenide (ORMOCHALC) can be used to fabricate a polymeric mid‐wavelength infrared (MWIR) polarizer with competitive extinction ratio compared to the commercial wire‐grid polarizers, which are composed of fragile inorganic materials, there is still a knowledge gap regarding the systematic design process to obtain high transmission efficiency and extinction ratio. To this end, a computational parameter study for design optimization is conducted with the geometric parameters of the bilayer grating ORMOCHALC polarizer. The computational study shows that the Fabry–Pérot cavity is the primary mechanism that determines the transmission behaviors and the extinction ratio. A bilayer grating design, guided by the parameter study, is realized through the thermal nanoimprint and metal deposition processes. The extinction ratios measured with the Fourier‐transform infrared are 245, 304, and 351 at the wavelength of 3, 4, and 5 µm, respectively. Compared to the state‐of‐the‐art of the polymeric MWIR linear polarizers, the extinction ratio is improved by 1.4 times, and the transmission efficiency is increased by 2.5 times. Theoretical analysis with the multiple‐layer model based on the transfer matrix method predicts a matched transmission behavior with the experiment and a full‐wave electromagnetic simulation.
中文翻译：
ORMOCHALC聚合物上的高效中波长红外偏振器的设计
尽管有机改性的硫族化物（ORMOCHALC）可以用于制造具有竞争优势的消光比的聚合物中波长红外（MWIR）偏振片，但该线偏振片由易碎的无机材料组成，但是仍然存在知识空白关于获得高传输效率和消光比的系统设计过程。为此，利用双层光栅ORMOCHALC偏振器的几何参数进行了用于设计优化的计算参数研究。计算研究表明，法布里-珀罗腔是决定传播行为和消光比的主要机理。在参数研究的指导下，通过热纳米压印和金属沉积工艺实现了双层光栅设计。用傅立叶变换红外测得的消光比分别为3、4和5 µm，波长分别为245、304和351。与最新的聚合物MWIR线性偏振器相比，消光比提高了1.4倍，透射效率提高了2.5倍。基于传输矩阵方法的多层模型的理论分析可预测与实验和全波电磁仿真相匹配的传输行为。
更新日期：2020-03-22
中文翻译：
ORMOCHALC聚合物上的高效中波长红外偏振器的设计
尽管有机改性的硫族化物（ORMOCHALC）可以用于制造具有竞争优势的消光比的聚合物中波长红外（MWIR）偏振片，但该线偏振片由易碎的无机材料组成，但是仍然存在知识空白关于获得高传输效率和消光比的系统设计过程。为此，利用双层光栅ORMOCHALC偏振器的几何参数进行了用于设计优化的计算参数研究。计算研究表明，法布里-珀罗腔是决定传播行为和消光比的主要机理。在参数研究的指导下，通过热纳米压印和金属沉积工艺实现了双层光栅设计。用傅立叶变换红外测得的消光比分别为3、4和5 µm，波长分别为245、304和351。与最新的聚合物MWIR线性偏振器相比，消光比提高了1.4倍，透射效率提高了2.5倍。基于传输矩阵方法的多层模型的理论分析可预测与实验和全波电磁仿真相匹配的传输行为。
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