Photoconductive generation and detection of THz-bandwidth pulses using near-field coupling to a free-space metallic slit waveguide | Zendy

Levi Smith | Zendy; Afshin Jooshesh | Zendy; Jinye Zhang | Zendy; Thomas E. Darcie | Zendy

Open Access

Photoconductive generation and detection of THz-bandwidth pulses using near-field coupling to a free-space metallic slit waveguide

Author(s) -

Levi Smith,

Afshin Jooshesh,

Jinye Zhang,

Thomas E. Darcie

Publication year - 2017

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.026492

Subject(s) - optics , terahertz radiation , materials science , waveguide , bandwidth (computing) , optoelectronics , detector , aperture (computer memory) , physics , telecommunications , computer science , acoustics

THz-bandwidth pulses are generated, transmitted along a gold-plated stainless steel metallic slit waveguide, and detected with 1.5 THz bandwidth and 60 dB dynamic range. The source and detector were edge-pumped slotlines on LT-GaAs placed within the near-field region of the waveguide entrance and exit aperture. The motivation for this work was to develop a complete dispersion-free THz system which was simple to manufacture and could be utilized for free-space waveguide experimentation.

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