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

Zheng, Guoxing; Liu, Guogen; Kenney, Mitchell Guy; Li, Zile; He, Ping�an; Li, Song; Ren, Zhi; Deng, Qiling

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.

Citation

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

• Journal Article Type: Article
• Acceptance Date: Mar 15, 2016
• Online Publication Date: Mar 18, 2016
• Publication Date: Mar 21, 2016
• Deposit Date: Sep 23, 2020
• Publicly Available Date: Sep 23, 2020
• Journal: Optics Express
• Publisher: Optical Society of America
• Peer Reviewed: Peer Reviewed
• Volume: 24
• Issue: 6
• Pages: 6749-6757
• DOI: https://doi.org/10.1364/OE.24.006749
• Public URL: https://nottingham-repository.worktribe.com/output/4921956
• Publisher URL: https://www.osapublishing.org/oe/abstract.cfm?uri=oe-24-6-6749