Design and numerical simulation of a silicon-based linear polarizer with double-layered metallic nano-gratings

Yu Lin; Jingpei Hu; Chinhua Wang

doi:10.1117/12.2245031

31 October 2016 Design and numerical simulation of a silicon-based linear polarizer with double-layered metallic nano-gratings

Yu Lin, Jingpei Hu, Chinhua Wang

Author Affiliations +

Proceedings Volume 10022, Holography, Diffractive Optics, and Applications VII; 100221P (2016) https://doi.org/10.1117/12.2245031
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

With the increasing demand for linearly polarized elements with high performance in many fields and applications, design and fabrication of sub-wavelength metallic linear polarizer have made tremendous progress in recent years. In this paper, we proposed a novel structure of a silicon-based linear polarizer working in the infrared (3-5μm) waveband with a double-layered metallic grating structure. A two-layer metallic grating with a transition layer of low refractive index is fabricated on a silicon substrate. In contrast to those conventional single layer metallic polarizing grating, the multilayer polarizing structure has the advantages of easy fabrication and high performance. Numerical simulation results show that an extinction ratio of linear polarization can be up to 58.5dB and the TM-polarized light transmission is greater than 90%. The behaviors and advantages of the proposed multilayer polarizer are compared with that of a traditional single-layer metallic grating. The proposed silicon-based linear polarizer will have great potential applications in real-time polarization imaging with high extinction ratio and high transmission.

Citation Download Citation

Yu Lin, Jingpei Hu, and Chinhua Wang "Design and numerical simulation of a silicon-based linear polarizer with double-layered metallic nano-gratings", Proc. SPIE 10022, Holography, Diffractive Optics, and Applications VII, 100221P (31 October 2016); https://doi.org/10.1117/12.2245031

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available