Title :
Time-resolved quantum beats in the polarization state of coherent emission from multiple quantum wells
Author :
Chen, X. ; Buccafusca, O. ; Smirl, A.L.
Author_Institution :
Lab. for Photonics & Quantum Electron., Iowa Univ., Iowa City, IA, USA
Abstract :
Summary form only given.Here, we describe measurements of the dynamics of the amplitude, phase, and polarization state of the emission from a GaAs-AlGaAs MQW when the excitation spectrum is tuned so that both hh and lh are excited and quantum beats are observed. We find that all of the parameters that describe the polarization state (including the ellipticity and the orientation of the polarization ellipse) oscillate at the hh-lh beat frequency.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; light polarisation; multiwave mixing; semiconductor quantum wells; GaAs-AlGaAs; GaAs-AlGaAs MQW; coherent emission; excitation spectrum; excited states; multiple quantum wells; polarization ellipse orientation; polarization state; quantum beats; time-resolved quantum beats; Cities and towns; Delay effects; Four-wave mixing; Laboratories; Optical polarization; Phase measurement; Photonics; Pulse measurements; Quantum well devices; Signal resolution;
Conference_Titel :
Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-541-2
DOI :
10.1109/IQEC.1998.680424
