Ultracompact high-efficiency polarising beam splitter based on silicon nanobrick arrays

Zheng, G., Liu, G., Kenney, M. G. , Li, Z., He, P.’a., Li, S., Ren, Z. and Deng, Q. (2016) Ultracompact high-efficiency polarising beam splitter based on silicon nanobrick arrays. Optics Express, 24(6), pp. 6749-6757. (doi: 10.1364/OE.24.006749)

Abstract

Since the transmission of anisotropic nano-structures is sensitive to the polarisation of an incident beam, a novel polarising beam splitter (PBS) based on silicon nanobrick arrays is proposed. With careful design of such structures, an incident beam with polarisation direction aligned with the long axis of the nanobrick is almost totally reflected (~98.5%), whilst that along the short axis is nearly totally transmitted (~94.3%). More importantly, by simply changing the width of the nanobrick we can shift the peak response wavelength from 1460 nm to 1625 nm, covering S, C and L bands of the fiber telecommunications windows. The silicon nanobrick-based PBS can find applications in many fields which require ultracompactness, high efficiency, and compatibility with semiconductor industry technologies.

• Item Type: Articles
• Additional Information: This work was supported by the National Natural Science Foundation of China (NSFC) (11374235, 11574240) and Project of Geographic Information for Surveying and Mapping (201412007, 201512016).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Kenney, Dr Mitchell Guy
• Authors: Zheng, G., Liu, G., Kenney, M. G., Li, Z., He, P.’a., Li, S., Ren, Z., and Deng, Q.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Optics Express
• Publisher: Wiley
• ISSN: 1094-4087
• ISSN (Online): 2195-1071
• Published Online: 18 March 2016
• Copyright Holders: Copyright © 2016 OSA
• First Published: First published in Optics Express 24(6):6749-6757
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher