@inproceedings{87d6a662057546cbb40f3030b715cac8,
title = "Low-index cladded wire grating as broadband polarizing Beam Splitter",
abstract = "A sandwich structure including subwavelength grating and low-index thin film as a broadband polarizing beam splitter (BPBS) is demonstrated. The BPBS is studied by using the rigorous coupled-wave analysis (RCWA) numerical scheme. The low-index thin-film with optimum thickness forms between the silicon substrate and the subwavelength grating. While the thickness of low-index thin film is larger than 0.6 μm, the reflectivity of TE wave is larger than 0.95 in the wavelength region [1.29 μm, 1.66 μm] under the normal incidence. In this region, the reflectivity of TM wave is low. Meanwhile, it is also found that while the thickness of low-index thin film rise to 0.9 μm, the extinction ratio of TM polarization is less than 0.047 in the wavelength region [1.35 μm, 1.48 μm]. Therefore, the designed sandwich structure consisted of subwavelength grating, low-index thin film and silicon substrate can be used as broadband polarizing beam splitter.",
keywords = "Broadband polarizing beam splitter, Extinction ratio, Rigorous coupled-wave analysis, Sandwich structure, Subwavelength grating",
author = "Sze, {Jyh Rou} and Wei, {An Chi}",
year = "2012",
doi = "10.1117/12.928401",
language = "???core.languages.en_GB???",
isbn = "9780819491800",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Nanoengineering",
note = "Nanoengineering: Fabrication, Properties, Optics, and Devices IX ; Conference date: 14-08-2012 Through 16-08-2012",
}