Abstract

We report on the broadband terahertz (THz) transmission within a symmetrical plastic film coated parallel-plate waveguide. We theoretically study the antiresonant reflecting mechanism of the waveguide, and we find that the broadband THz wave can transmit in this waveguide with ultralow loss. The loss of the TM mode in this waveguide can be 4 orders of magnitude lower than the uncoated parallel-plate waveguide. The transmission bandwidth of this waveguide is up to 5.12 THz. We further show the mode field distributions which explain the loss mechanism.

© 2014 Optical Society of America

Terahertz wave transmission within metal-clad antiresonant reflecting hollow waveguides

Jiamin Liu, Huawei Liang, Min Zhang, and Hong Su
Appl. Opt. 54(14) 4549-4555 (2015)

Adding metallic layers outside terahertz antiresonant reflecting waveguides: the influence on loss spectra

Chih-Hsien Lai, Ja-Yu Lu, and Hung-chun Chang
J. Opt. Soc. Am. B 28(9) 2200-2206 (2011)

Inhibiting the TE₁-mode diffraction losses in terahertz parallel-plate waveguides using concave plates

Marx Mbonye, Rajind Mendis, and Daniel M. Mittleman
Opt. Express 20(25) 27800-27809 (2012)

A novel broadband coaxial probe to parallel plate dielectric waveguide transition at THz frequency

Longfang Ye, Ruimin Xu, Zhihui Wang, and Weigan Lin
Opt. Express 18(21) 21725-21731 (2010)

Thin layer terahertz sensing using two-channel parallel-plate waveguides

Hyeon Sang Bark, Jingshu Zha, Eui Su Lee, and Tae-In Jeon
Opt. Express 22(14) 16738-16744 (2014)