{"title":"Polarization-Sensitive Deep-Groove Absorption Grating Based on Silicon","authors":"Ying Tang, Shaoxin Zheng, Wenkang Huang, Feng Lin, Guilan Feng, Tianqi Zhao, Xufeng Jing, Chenxia Li","doi":"10.3103/S1541308X24700523","DOIUrl":null,"url":null,"abstract":"<p>The paper proposes a deep-groove grating structure that exhibits high absorption characteristics of polarized light in the near-infrared band, as revealed by analyzing the electromagnetic field of this structure. By optimizing parameters such as the period and surface structure dimensions of its unit cell, a high-quality polarization-sensitive grating absorber is obtained. Traditional silicon is limited by a bandgap of 1.12 eV, resulting in poor absorption in the near-infrared band beyond 1000 nm. The deep-groove grating structure designed in this paper overcomes the absorption limitations of silicon itself, successfully extending the upper wavelength limit of the high absorption region to 1500 nm, while also exhibiting polarization-sensitive chara-cteristics.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 1","pages":"46 - 56"},"PeriodicalIF":1.1000,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Wave Phenomena","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.3103/S1541308X24700523","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The paper proposes a deep-groove grating structure that exhibits high absorption characteristics of polarized light in the near-infrared band, as revealed by analyzing the electromagnetic field of this structure. By optimizing parameters such as the period and surface structure dimensions of its unit cell, a high-quality polarization-sensitive grating absorber is obtained. Traditional silicon is limited by a bandgap of 1.12 eV, resulting in poor absorption in the near-infrared band beyond 1000 nm. The deep-groove grating structure designed in this paper overcomes the absorption limitations of silicon itself, successfully extending the upper wavelength limit of the high absorption region to 1500 nm, while also exhibiting polarization-sensitive chara-cteristics.
期刊介绍：
Physics of Wave Phenomena publishes original contributions in general and nonlinear wave theory, original experimental results in optics, acoustics and radiophysics. The fields of physics represented in this journal include nonlinear optics, acoustics, and radiophysics; nonlinear effects of any nature including nonlinear dynamics and chaos; phase transitions including light- and sound-induced; laser physics; optical and other spectroscopies; new instruments, methods, and measurements of wave and oscillatory processes; remote sensing of waves in natural media; wave interactions in biophysics, econophysics and other cross-disciplinary areas.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
