[PDF] Top 20 Characterization of low-loss waveguides and devices for terahertz radiation

... plasmonic loss in a hollow-core wave- guide can also be ...differential loss of the higher-order modes can be significantly increased to reduce mode ...guided-wave devices, such as power splitters ... See full document

... (THz) radiation is electro-magnetic radiation in the frequency range of ...Scientifically, terahertz radiation is important for spectroscopic investigations and characterization of ... See full document

... Terahertz radiation (or THz waves), generally identified as covering the ...such radiation have been reported including medical diagnostics [1], [2], testing of pharmaceutical drugs [3], and defect ... See full document

... THz radiation is provided by a VDI tunable Gunn Diode capable of frequencies between 170 GHz and 250 GHz; the source is also equipped with an electronic ...THz radiation then needs to be collimated by a TPX ... See full document

... of Terahertz sources, the penetration of Terahertz radiation through dielectric materials and the high sensitivity of Terahertz ...THz radiation of dielectrics and metals, extensive ... See full document

... electronic devices are attracting significant interest due to their versatility and low cost; however, quality control during manufacturing is a significant challenge, preventing the widespread adoption of ... See full document

... known loss was introduced into the exit aperture of the ...perpendicular waveguides using such an optical ...primary loss mechanisms contributing to this value included the free carrier losses from ... See full document

... of Terahertz sources, the penetration of Terahertz radiation through dielectric materials and the high sensitivity of Terahertz ...THz radiation of dielectrics and metals, extensive ... See full document

... THz radiation suffers high absorption losses in conventional dielectric waveguides, whereas at the same time, unlike microwaves, THz radiation also suffers from high Ohmic losses and dispersion in ... See full document

... study loss and dispersion characteristics of the dielectric-coated hollow-core waveguide, a full-vectorial finite element method (FEM) is ...guided-wave devices including the intermediate terahertz ... See full document

... of terahertz (THz) radiation has triggered a flurry of research activity in semiconductor and solid state physics in recent ...a low-loss waveguide is a critical part of the design phase as ... See full document

... unwanted radiation out of the computational domain has been used in the present work, providing an effective numerical tool for the analysis of the devices examined, since it utilizes all the advantages of ... See full document

... Photonic devices such as semiconductor lasers diodes, which are typically compact sources of radiation in near-IR and opti- cal range are also used to generate THz ...the low band gap energy is ... See full document

... a Terahertz frequency range band-stop filter for molecular sensing [15], where two 5 μm wide band-stop filter stubs with a length of 192 μm and 83 μm are placed at a 400 μm apart along the direction of ... See full document

... relatively low loss, dynamical tunability, and extreme confinement to THz waves, hold promising applications in high-resolution, ultra-compact, and dynamical tunable ...control terahertz plasmons ... See full document

... The terahertz (THz) region occupies a large portion of the electromagnetic spectrum, located between the microwave and optical frequencies and normally is defined as the band ranging from ...THz radiation ... See full document

... guided-wave devices, particularly waveguides for terahertz (THz) band, is that most materials are lossy in this frequency ...considerable loss in this THz ...the low-loss air ... See full document

... Dielectric waveguides in silica, silicon, polymer, and other semiconductors materials have been widely used at optical frequencies: however most of these materials are very lossy at the lower terahertz ... See full document

... from radiation loss and environmental disturbance, such as moisture in the air and cladding ...extremely low loss with negligible dispersion and single mode property over a wide band, but it ... See full document

... electronic devices. For devices encased in a homogenous plastic medium with thicknesses up to several millimeters thick, the system and techniques presented are effective in nondestructively inspecting and ... See full document