THz-TDS using a photoconductive free-space linear tapered slot antenna transmitter

Date

2017

Authors

Smith, Robert
Jooshesh, Afshin
Zhang, Jinye
Darcie, Thomas

Journal Title

Journal ISSN

Volume Title

Publisher

Optics Express

Abstract

A near-field edge-coupled photoconductive free-space linear tapered slot antenna has been constructed as a planar alternative to the standard photoconductive switch coupled to a silicon substrate lens. The temporal response along the optical axis is investigated to ensure the structure itself does not introduce pulse distortion which would fundamentally limit the usefulness of the structure. Experimental results show that a 1.6 THz bandwidth with a ≈50dB dynamic range is achievable with the new structure which is comparable to our reference experiment with a standard silicon substrate lens. The investigated structure has the added benefit of a potential substantial physical size reduction and can also be used to excite waveguides in the near-field.

Description

Keywords

Citation

Smith, R.; Jooshesh, A.; Zhang, J.; & Darcie, T. (2017). THz-TDS using a photoconductive free-space linear tapered slot antenna transmitter. Optics Express, 25(9), 10118-10125. https://doi.org/10.1364/OE.25.010118