响应度
偏振器
光电子学
材料科学
光电探测器
栅栏
光学
锑化镓
极化(电化学)
消光比
双层
红外线的
超晶格
波长
物理
生物
遗传学
双折射
物理化学
膜
化学
作者
Minseok Lee,Zahyun Ku,Seungjin Jeong,Jehwan Hwang,Jung‐Hyun Lee,Junoh Kim,Sang‐Woo Kang,Augustine Urbas,Hagyoul Bae,Bongjoong Kim
标识
DOI:10.1038/s41598-024-52113-4
摘要
Abstract Linear gratings polarizers provide remarkable potential to customize the polarization properties and tailor device functionality via dimensional tuning of configurations. Here, we extensively investigate the polarization properties of single- and double-layer linear grating, mainly focusing on self-aligned bilayer linear grating (SABLG), serving as a wire grid polarizer in the mid-wavelength infrared (MWIR) region. Computational analyses revealed the polarization properties of SABLG, highlighting enhancement in TM transmission and reduction in TE transmission compared to single-layer linear gratings (SLG) due to optical cavity effects. As a result, the extinction ratio is enhanced by approximately 2724-fold in wavelength 3–6 μm. Furthermore, integrating the specially designed SABLG with an MWIR InAs/GaSb Type-II Superlattice (T2SL) photodetector yields a significantly enhanced spectral responsivity. The TM-spectral responsivity of SABLG is enhanced by around twofold than the bare device. The simulation methodology and analytical analysis presented herein provide a versatile route for designing optimized polarimetric structures integrated into infrared imaging devices, offering superior capabilities to resolve linear polarization signatures.
科研通智能强力驱动
Strongly Powered by AbleSci AI