Giant tunable Faraday effect in a semiconductor magneto-plasma for broadband terahertz polarization optics. Academic Article uri icon


  • We report on a giant Faraday effect in an electron plasma in n-InSb probed via polarization-resolved terahertz (THz) time-domain spectroscopy. Polarization rotation angles and ellipticities reach as large as π/2 and 1, respectively, over a wide frequency range (0.3-2.5 THz) at magnetic fields of a few Tesla. The experimental results together with theoretical simulations show its promising ability to construct broadband and tunable THz polarization optics, such as a circular polarizer, half-wave plate, and polarization modulators.

author list (cited authors)

  • Arikawa, T., Wang, X., Belyanin, A. A., & Kono, J

complete list of authors

  • Arikawa, Takashi||Wang, Xiangfeng||Belyanin, Alexey A||Kono, Junichiro

publication date

  • January 1, 2012 11:11 AM