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A novel terahertz (THz) waveguide Bragg grating is proposed for dispersion compensation. The results confirm single mode guidance of the fundamental mode, as well as large negative group velocity dispersion in the vicinity of 0.14THz and 0.16THz, respectively.
We demonstrate a low-loss terahertz waveguide Bragg grating (TWBG) fabricated using a plasmonic two-wire waveguide and a micromachined paper grating for potential applications in THz communications. Two TWBGs were fabricated with different periods and lengths and investigated experimentally. TWBG modal dispersion relations, modal loss, and field distributions were studied numerically. Additionally,...
We present experimental verification of the transmission spectra and low propagation loss (α ≤ 0.02cm−1) of porous and non-porous subwavelength THz fibers. Porosity creates broader single-mode transmission peaks shifted to higher frequencies.
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