This work presents evidence of phase velocity dependence on metal surface roughness for terahertz (THz) waves propagating in a parallel plate metal waveguide having a sub-wavelength gap. This suggests a possibility to control the phase velocity and the propagation direction of guided THz waves by varying the surface roughness of the parallel plates.
机构:
Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou, Zhejiang, Peoples R China
Zhejiang Univ, Joint Res Ctr Photon, Royal Inst Technol Sweden, Hangzhou, Zhejiang, Peoples R ChinaZhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou, Zhejiang, Peoples R China
Wang, Bowen
Jin, Yi
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Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou, Zhejiang, Peoples R China
Zhejiang Univ, Joint Res Ctr Photon, Royal Inst Technol Sweden, Hangzhou, Zhejiang, Peoples R ChinaZhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou, Zhejiang, Peoples R China
Jin, Yi
He, Sailing
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Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou, Zhejiang, Peoples R China
Zhejiang Univ, Joint Res Ctr Photon, Royal Inst Technol Sweden, Hangzhou, Zhejiang, Peoples R China
Royal Inst Technol, Sch Elect Engn, Div Electromagnet Theory, S-10044 Stockholm, SwedenZhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou, Zhejiang, Peoples R China