High efficiency coupler for terahertz anti-resonate waveguide

Tianji Chen; Ting He; Bo Zhang; Jingling Shen

doi:10.1117/12.2071872

11 November 2014 High efficiency coupler for terahertz anti-resonate waveguide

Tianji Chen, Ting He, Bo Zhang, Jingling Shen

Proceedings Volume 9275, Infrared, Millimeter-Wave, and Terahertz Technologies III; 927519 (2014) https://doi.org/10.1117/12.2071872
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

We design a coupler for coupling parallel terahertz radiation into a terahertz anti-resonate waveguide sensor. It is the combination of a conical column and a short cylinder and made of aluminum. We simulate the coupler working in the case of a parallel terahertz wave and investigate the coupling results of both a broadband terahertz wave and a single frequency terahertz wave from free-space into an anti-resonate waveguide sensor. The results indicate that the transmission spectrum can be described as a sum of the transmission associated with the conical column and the cylinder part. We optimize the best dimension parameter of the coupler, with which we get the coupling ratio of 86.3% and the terahertz intensity concentration factor of 6.9.

Citation Download Citation

Tianji Chen, Ting He, Bo Zhang, and Jingling Shen "High efficiency coupler for terahertz anti-resonate waveguide", Proc. SPIE 9275, Infrared, Millimeter-Wave, and Terahertz Technologies III, 927519 (11 November 2014); https://doi.org/10.1117/12.2071872

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