Unidirectional propagation of surface plasmons under active control

Huang Tao; Jiajian Wang; Ziwei Li; Wei Liu; Feng Lin; Zheyu Fang; Xing Zhu

doi:10.1117/12.2247752

3 November 2016 Unidirectional propagation of surface plasmons under active control

Huang Tao, Jiajian Wang, Ziwei Li, Wei Liu, Feng Lin, Zheyu Fang, Xing Zhu

Proceedings Volume 10028, Plasmonics II; 100281B (2016) https://doi.org/10.1117/12.2247752
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

We proposed a symmetric V-type slit array to tune the propagation direction of surface plasmon polaritons by external control of the polarization and/or the inclination angle of the incident light. Using theoretical analysis and numerical simulation, we studied the position-related phase and spin-related phase of the SPPs excited by an inclined and circularly polarized light through a column of slits to determine the parameter of the structure. The results showed that we can tune the propagation of the SPPs with significant flexibility, by changing the polarization of the incident light and the inclination angle of the incident light. Furthermore, a nanostructures were designed to control directional launching of surface plasmons based on the principle of optical spin’s effect for the geometric phase of light. The propagation direction of the generated SPPs can be controlled by the spin of photons. The total size of the surface plasmon polariton (SPP) launcher is 320 nm by 180 nm, which is far smaller than the wavelength of the incident light. This result may provide a new way of spin-controlled directional launching of SPP.

Citation Download Citation

Huang Tao, Jiajian Wang, Ziwei Li, Wei Liu, Feng Lin, Zheyu Fang, and Xing Zhu "Unidirectional propagation of surface plasmons under active control", Proc. SPIE 10028, Plasmonics II, 100281B (3 November 2016); https://doi.org/10.1117/12.2247752

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