应用物理  >> Vol. 6 No. 9 (September 2016)

基于亚波长多齿光栅结构的双功能偏振选择分束器的研究
A Dual-Function Polarization-Selective Beam Splitter Based on a Subwavelength Multi-Subpart Profile Grating Structure

DOI: 10.12677/APP.2016.69025, PDF, HTML, XML, 下载: 1,628  浏览: 2,706  国家自然科学基金支持

作者: 马林飞, 肖文波, 吴华明*, 徐欢欢, 段军红:无损检测与光电传感技术及应用国家地方联合工程实验室、无损检测技术教育部重点实验室, 江西 南昌;江西省光电检测技术工程实验室、南昌航空大学测试与光电工程学院,江西 南昌;肖永生*, 黄丽贞:南昌航空大学信息工程学院,江西 南昌

关键词: 衍射光栅泄露模谐振偏振分束器Diffraction and Gratings Polarizing Beam Splitters (PBSs) Leaky-Mode Resonance (LMR)

摘要: 本文主要介绍了一种基于单层微纳多齿谐振光栅的双功能偏振分束器。严格耦合波理论分析表明,在垂直入射时,对于TE偏振光(电场平行于光栅槽线)来说,该器件在1.46~1.58 μm宽谱范围内,其反射率大于97%;而对于TM偏振光(磁场平行于光栅槽线)来说,该结构在1.55 μm波长处,能够实现50/50反射和透射分束比。此外,为了分析此器件对结构参数变化的响应,我们还分析了此结构的工艺容差性。
Abstract: In this paper, a dual-function polarization selective beam splitter (PSBS) constructed by only a single layer subwavelength multi-subpart profile grating is presented. Rigorous coupled-wave analysis is adopted to investigate the properties of the structure. It is shown that for transverse electric (TE) polarized wave, the device demonstrates very high reflectivity (>97%) from 1.46 to 1.58 µm; and for transverse magnetic (TM) polarized wave, at the wavelength of 1.55 μm, it exhibits about 50/50 beam ratio under normal incidence. To evaluate the response of the PSBS under variation in structure parameters, we also investigated the fabrication tolerances of the device.

文章引用: 马林飞, 肖文波, 吴华明, 徐欢欢, 肖永生, 黄丽贞, 段军红. 基于亚波长多齿光栅结构的双功能偏振选择分束器的研究[J]. 应用物理, 2016, 6(9): 193-203. http://dx.doi.org/10.12677/APP.2016.69025

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