Negative refraction in a uniaxial absorbent dielectric material

Yi Jun Jen, Akhlesh Lakhtakia, Ching Wei Yu, Chin Te Lin

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Refraction of light from an isotropic dielectric medium to an anisotropic dielectric material is a complicated phenomenon that can have several different characteristics not usually discussed in electromagnetics textbooks for undergraduate students. With a simple problem wherein the refracting material is uniaxial with its optic axis normal to the interface plane, the phenomena of (i) negative/positive refraction, (ii) negative/positive phase velocity, (iii) counterposition of the phase velocity and the time-averaged Poynting vector, and (iv) 'negative refraction' of the energy flux density can be examined. The last-named phenomenon is really negative deflection by refraction.

Original languageEnglish (US)
Pages (from-to)1381-1390
Number of pages10
JournalEuropean Journal of Physics
Issue number6
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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