Terahertz negative refraction in a high-temperature superconducting material

Meng Ru Wu, Heng-Tung Hsu, Chien Jang Wu*, Shoou Jinn Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The phenomenon of negative refraction at terahertz (THz) frequency for a high-temperature superconducting material is theoretically investigated based on the inhomogeneous wave theory. Negative refraction, which arises from the negative refractive angle, can occur when a p-polarized wave is incident from a dielectric to a superconductor. The dependences of negative refractive angle on the angle of incidence, the wave frequency, and the temperature have been analytically studied. The conditions for obtaining a pronounced result in negative refraction are elucidated. The study of negative refraction is of potential use in designing a tunable polarizer. In addition, it is an extended study of a transmission problem that is not treatable from the Fresnel equations in electromagnetics and optics.

Original languageEnglish
Article number7008526
Pages (from-to)230-235
Number of pages6
JournalIEEE Transactions on Terahertz Science and Technology
Issue number2
StatePublished - 1 Mar 2015


  • Negative refraction
  • polarized wave
  • superconductor
  • two-fluid model

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