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Proceedings Paper

Franz-Keldysh effect and exciton ionization in a short one-dimensional semiconductor quantum wire
Author(s): Tong-Yi Zhang; Wei Zhao
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Paper Abstract

We investigate the optical properties of a one-dimensional semiconductor quantum wire in the presence of a static electric field applied along the axis. Optical absorption spectra near the band gap are nonperturbatively calculated by solving the low-density semiconductor Bloch equations in real space. The influence of the Franz-Keldysh effect and the exciton ionization on the continuum of the absorption spectrum in semiconductor quantum wire is investigated. We found substantial and tunable absorption oscillations appear above the band gap for reasonable electric strengths. This shows semiconductor quantum wire has great promise of the potential applications in electric-optical devices.

Paper Details

Date Published: 2 December 2005
PDF: 5 pages
Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60202A (2 December 2005); doi: 10.1117/12.633605
Show Author Affiliations
Tong-Yi Zhang, Xi'an Institute of Optics and Precision Mechanics (China)
Wei Zhao, Xi'an Institute of Optics and Precision Mechanics (China)

Published in SPIE Proceedings Vol. 6020:
Optoelectronic Materials and Devices for Optical Communications
Shinji Tsuji; Jens Buus; Yi Luo, Editor(s)

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