Asymmetric propagation of electromagnetic waves through nanoscale spirals

Jingpei Hu; Yu Lin; Aijiao Zhu; Xiaonan Zhao; Chinhua Wang

doi:10.1117/12.2245384

31 October 2016 Asymmetric propagation of electromagnetic waves through nanoscale spirals

Jingpei Hu, Yu Lin, Aijiao Zhu, Xiaonan Zhao, Chinhua Wang

Proceedings Volume 10022, Holography, Diffractive Optics, and Applications VII; 100221Q (2016) https://doi.org/10.1117/12.2245384
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

In this paper, we report that normal incidence transmission of different circularly polarized waves through the 2D Archimedes’ nanoscale spirals is asymmetric. The structures consist of raised spiral ridge and two layers metal film covered on the substrate and the ridge. The finite difference time domain method was used to design the structure and perform the simulation. The device can distinguish the different circularly polarized wave across the transmission intensity compare with the common Archimedes’ nanoscale spirals which just exhibit the bright or dark modes in the light field. We confirmed that the device provide about 10% circular dichroism in 3.85um-6.0um broadband region. The circular dichroism in the wavelength 3.95 um can reach 13%. This ultracompact device could prove useful for remote sensing and advanced telecommunication applications.

Citation Download Citation

Jingpei Hu, Yu Lin, Aijiao Zhu, Xiaonan Zhao, and Chinhua Wang "Asymmetric propagation of electromagnetic waves through nanoscale spirals", Proc. SPIE 10022, Holography, Diffractive Optics, and Applications VII, 100221Q (31 October 2016); https://doi.org/10.1117/12.2245384

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