Franz-Keldysh effect and exciton ionization in a short one-dimensional semiconductor quantum wire

Tong-Yi Zhang; Wei Zhao

doi:10.1117/12.633605

2 December 2005 Franz-Keldysh effect and exciton ionization in a short one-dimensional semiconductor quantum wire

Tong-Yi Zhang, Wei Zhao

Proceedings Volume 6020, Optoelectronic Materials and Devices for Optical Communications; 60202A (2005) https://doi.org/10.1117/12.633605
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

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.

Citation Download Citation

Tong-Yi Zhang and Wei Zhao "Franz-Keldysh effect and exciton ionization in a short one-dimensional semiconductor quantum wire", Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60202A (2 December 2005); https://doi.org/10.1117/12.633605

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