Arikawa, TakashiWang, XiangfengBelyanin, Alexey A.Kono, Junichiro2013-03-202013-03-202012Arikawa, Takashi, Wang, Xiangfeng, Belyanin, Alexey A., et al.. "Giant tunable Faraday effect in a semiconductor magneto-plasma for broadband terahertz polarization optics." <i>Optics Express,</i> 20, no. 17 (2012) Optical Society of America: 19484-19492. http://dx.doi.org/10.1364/OE.20.019484.https://hdl.handle.net/1911/70796We 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.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1364/OE.20.019484