Tunable terahertz power divider based on graphene plasmonic waveguide

Yang Li; Jian-Rong Hu; Jiu-Sheng Li

doi:10.1117/12.2247131

3 November 2016 Tunable terahertz power divider based on graphene plasmonic waveguide

Yang Li, Jian-Rong Hu, Jiu-Sheng Li

Proceedings Volume 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV; 100302M (2016) https://doi.org/10.1117/12.2247131
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

We present an ultra-compact gate-voltage-controlled terahertz power divider based on graphene plasmonic waveguide, which consists of five graphene ribbons embedded in the polymethylmethacrylate (PMMA) substrate. We have theoretically explained their mechanisms as bias voltage change induced carrier density of graphene modification and the coupling coefficients of graphene plasmon effect after carrier density change, respectively. The surface plasmonic polariton (SPP) propagation and extinction ratio in the graphene-based device are numerically investigated. The proposed terahertz power divider has a 3dB working band about 0.1THz and its extinction ratio reaches about 39.86dB at the frequency of 7THz. It anticipated that our proposed compact device is potentially interesting for the terahertz wave integrated circuit technology.

Citation Download Citation

Yang Li, Jian-Rong Hu, and Jiu-Sheng Li "Tunable terahertz power divider based on graphene plasmonic waveguide", Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 100302M (3 November 2016); https://doi.org/10.1117/12.2247131

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