Polarized Terahertz Waves Emitted from In02Ga08As Nanowires

Title
Polarized Terahertz Waves Emitted from In02Ga08As Nanowires
Authors
Jong-Hyuk YimMuhammad IrfanKyoung-Jin Song이은혜송진동Young-Dahl Jho
Keywords
Terahertz; Nanowires; In02Ga08As; Polarizability; Diffusion
Issue Date
2015-08
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 15, NO 8, 6024
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.
URI
http://pubs.kist.re.kr/handle/201004/51126
ISSN
15334880
Appears in Collections:
KIST Publication > Article
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