Design of ultra-thin metallic grating based circular polarizer in the near infrared

DeJiao Hu; Ping Wang; Pang Lin; Fuhua Gao; Jinglei Du

doi:10.1117/12.2187598

28 August 2015 Design of ultra-thin metallic grating based circular polarizer in the near infrared

DeJiao Hu, Ping Wang, Pang Lin, Fuhua Gao, Jinglei Du

Proceedings Volume 9609, Infrared Sensors, Devices, and Applications V; 96090M (2015) https://doi.org/10.1117/12.2187598
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

The circular polarizers were mostly made of meta-atom based chiral metamaterials (CMMs). Here we propose an ultra-thin metallic grating based circular polarizer, which can convert any polarization into circular polarization. The circular polarizer consists of two layers: an ultra-thin metallic grating embedded in the substrate and a silicon grating on the substrate surface. The ultra-thin metallic grating, which is thinner than the skin depth and was shown to hold anomalous resonant reflection for transverse magnetic (TM) wave, functions as a quarter-wave plate. We show that the ultra-thin metallic grating based quarter-wave plate can transmit circular polarized wave when the incident linear polarized wave is oriented properly. The silicon grating acts as a linear polarizer which restricts the polarization of the light that reaches the metallic grating. Unlike some of the CMMs, our structure is independent of the incident polarization state. Moreover, the fabrication of our circular polarizer is easier than other double-layer-CMMs, in which the relative position between the two layers must be precisely controlled. Our structure can find its application integrated photonic devices.

Citation Download Citation

DeJiao Hu, Ping Wang, Pang Lin, Fuhua Gao, and Jinglei Du "Design of ultra-thin metallic grating based circular polarizer in the near infrared", Proc. SPIE 9609, Infrared Sensors, Devices, and Applications V, 96090M (28 August 2015); https://doi.org/10.1117/12.2187598

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Polarization

Silicon

Circular polarizers

Polarizers

Chiral metamaterials

Geometrical optics

Metals

Show All Keywords

Keywords/Phrases

Search In:

Publication Years