Conveners
R2-2 Terahertz Science and Applications (DAMOPC) | Science des terahertz et applications (DPAMPC)
- Paul Beaulieu (INRS)
We study a 3D-printed hollow core terahertz (THz) Bragg waveguide for resonant surface sensing applications. We demonstrate theoretically and confirm experimentally that by introducing a defect in the first layer of the Bragg reflector, thereby causing anticrossing between the dispersion relations of the core-guided mode and the defect mode, we can create a sharp transmission dip inside of the...
A novel hollow core waveguide Bragg gratings featuring periodically placed triangular axisymmetric slopes on its inner surface is proposed for the dispersion compensation in the terahertz frequency range. The proposed waveguide Bragg grating is operated in the bandgap of higher order modes and uses the fundamental HE11-like mode for the dispersion compensation. Theoretical results show that...
Over the past decade or more, there has been a great deal of interest in the mechanical, electronic and optical properties of graphene. The interest in the optical properties of monolayer graphene stems largely from two key features of the electronic band structure: it is gapless and the dispersion is linear near the Dirac points, where the two bands touch. Both of these features can be...
