Hybrid cylinder-triangle plasmonic waveguide for low loss propagation and subwavelength confinement

Lu Dong; Sheng Qu; Xinglang Xiang; Lei Wu; Shulong Wang; Hongxia Liu

doi:10.1117/12.2268782

28 February 2017 Hybrid cylinder-triangle plasmonic waveguide for low loss propagation and subwavelength confinement

Lu Dong, Sheng Qu, Xinglang Xiang, Lei Wu, Shulong Wang, Hongxia Liu

Proceedings Volume 10256, Second International Conference on Photonics and Optical Engineering; 1025608 (2017) https://doi.org/10.1117/12.2268782
Event: Second International Conference on Photonics and Optical Engineering, 2016, Xi'an, China

Abstract

In this paper, we design and analyze a novel hybrid cylinder-triangle plasmonic waveguide (HCTSPPs), which is composed of three high index dielectric cylinders placed above an equilateral triangular metal with the center corresponding to the three vertices of the triangle. The strong hybridization coupling between Si dielectric cylinders (SDCs) and the metallic triangular wedge SPP (WSPPs) enables enhanced field confinement inside the gap region as well as long propagation length. It is also shown that relative long propagation length (100 λ ) and ultra-small deep subwavelength effective mode area (λ²/4000) can be realized by gradual modification of the geometric size, which is one-order improvement compared to other hybrid waveguides. Moreover, an investigation of the effects of actual fabrication errors on the mode properties about HCTSPPs indicates that mode properties are also quite tolerant to fabrication deviations. The proposed waveguide could be applied to subwavelength laser devices and optically integrated circuits.

Citation Download Citation

Lu Dong, Sheng Qu, Xinglang Xiang, Lei Wu, Shulong Wang, and Hongxia Liu "Hybrid cylinder-triangle plasmonic waveguide for low loss propagation and subwavelength confinement", Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 1025608 (28 February 2017); https://doi.org/10.1117/12.2268782

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