title: Polarized Terahertz Waves Emitted from In0.2Ga0.8As Nanowires.
abstract: We investigate the polarizability of terahertz (THz) waves emitted from undoped In0.2Ga0.8As nanowires (NWs). THz emission amplitude shows strong enhancement in vertically aligned NWs compared to less-aligned NWs. In particular, polarized THz waves are clearly demonstrated in aligned NWs via a drastic variation of amplitudes as a function of the axis angle in polarization-sensitive photoconductive antenna. In addition, phase reversal between aligned and less-aligned NWs substantiates the geometrical dependence of electronic diffusion in generating the transient THz electric fields.
authors.forename: Jong-Hyuk
authors.initials: JH
authors.lastname: Yim
authors.forename: Muhammad
authors.initials: M
authors.lastname: Irfan
authors.forename: Kyoung-Jin
authors.initials: KJ
authors.lastname: Song
authors.forename: Eun-Hye
authors.initials: EH
authors.lastname: Lee
authors.forename: Jin-Dong
authors.initials: JD
authors.lastname: Song
authors.forename: Young-Dahl
authors.initials: YD
authors.lastname: Jho