Giant Tunable Faraday Effect in a Semiconductor Magneto-plasma for Broadband Terahertz Polarization Optics

Autor: Arikawa, T., Wang, X., Belyanin, A. A., Kono, J.
Rok vydání: 2012
Předmět:
Zdroj: Optics Express 17, 19484 (2012)
Druh dokumentu: Working Paper
DOI: 10.1364/OE.20.019484
Popis: 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 {\pi}/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.
Comment: 10 pages, 5 figures
Databáze: arXiv