Polarization dynamics of the nonlinear coherent emission from uniaxially-strained quantum wells

Author

Smirl, Arthur L. ; Chen, X. ; Buccafusca, O.

Author_Institution

lab. for Photonics & Quantum Electron., Iowa Univ., Iowa City, IA, USA

fYear

1998

fDate

10-14 Aug 1998

Firstpage

452

Lastpage

454

Abstract

We describe the first measurements of the dynamics of the amplitude, phase and polarization state of the coherent nonlinear emission from an anisotropic uniaxially-strained GaAs-AlGaAs MQW. We use time-resolved polarimetry to identify and to study two different links between the macroscopic changes in the vectorial nature of the emitted nonlinear signal and the microscopic materials processes. One source of the polarization changes is the anisotropy in the band structure introduced by the noncubic uniaxial strain

Keywords

high-speed optical techniques; light coherence; light polarisation; multiwave mixing; polarimetry; semiconductor quantum wells; 150 fs; GaAs-AlGaAs; amplitude state; anisotropic uniaxially-strained GaAs-AlGaAs MQW; band structure anisotropy; coherent nonlinear emission; emitted nonlinear signal; macroscopic changes; microscopic materials processes; noncubic uniaxial strain; nonlinear coherent emission; phase state; polarization changes; polarization dynamics; polarization state; time-resolved polarimetry; uniaxially-strained quantum wells; vectorial nature; Anisotropic magnetoresistance; Geometrical optics; Nonlinear optics; Optical mixing; Optical polarization; Optical refraction; Pulse measurements; Quantum well devices; Substrates; Uniaxial strain;

fLanguage

English

Publisher

ieee

Conference_Titel

Nonlinear Optics '98: Materials, Fundamentals and Applications Topical Meeting

Conference_Location

Kauai, HI

Print_ISBN

0-7803-4950-4

Type

conf

DOI

10.1109/NLO.1998.710354

Filename

710354