Abstract
The reflection properties of terahertz waves propagating along a metal wire are investigated and compared with the results in the visible spectral regime. The effects of metal wire radii, radiation frequencies and dielectric surrounding materials on the reflection characteristics are given and discussed. The contour plots show that as radiation frequency increases, the reflection amplitude decreases, and the reflection phase increases. With an increase in metal wire radius, the reflection amplitude decreases, and the reflection phase increases. The results are very useful for the application of metal wire antennas and plasmonic resonators.
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