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We numerically examine the influences of the cladding index and the cladding thickness on the transmission bandwidth of the terahertz (THz) pipe waveguide. Numerical results show that, when the refractive index or the thickness of the cladding decreases, the transmission band becomes broader under either condition. However, the transmission band suffers a larger loss when the cladding index decreases...
This paper described a new kind of quasi-optical resonant system for the extended interaction devices. Primary theoretical and simulation results show that this newly developed device has advantages both in modes selectivity and coupling enhancement with the electrons. A demonstration of this resonant system is carried out in W band. This may be utilized to design a compact, tunable and powerful extended...
The electromagnetic field around a planar plasmonic waveguide can be used for the study of single metamaterial components such as single or double split ring resonators (SRR). The resonances in the terahertz (THz) frequency range of these devices will be studied with planar waveguides. We have chosen to use planar Goubau-Sommerfeld lines (PGSL) which are planar strip plasmonic lines because they are...
We present an investigation of photonic molecules in the (sub-) terahertz range. We couple two dielectric whispering gallery mode resonators with matched resonance spectra over tens of resonances. The (loaded) quality (Q)-factors of the individual disks range from 50 - 800. We observe mode splitting for all modes in the range of 0.15 - 0.33 (0.29) THz for a set of polyethylene (quartz) disks with...
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