Femtosecond time-evolution of the coherence properties of resonant secondary emission from excitons in GaAs quantum wells

Author

Woerner, M. ; Shah, J.

Author_Institution

Bell Labs., Lucent Technol., Holmdel, NJ, USA

fYear

1992

fDate

23-28 May 1992

Firstpage

149

Lastpage

150

Abstract

Summary form only given. The femtosecond dynamics and the coherence properties of resonant secondary emission (RSE) from quantum wells is a subject of considerable current interest. We use a novel approach in which the sample is resonantly excited by a pair of phase-locked pulses, and the spontaneously emitted radiation is detected by femtosecond upconversion. This novel experimental technique allows us, for the first time, to investigate the temporal evolution and the coherence properties of RSE simultaneously.

Keywords

III-V semiconductors; excitons; gallium arsenide; high-speed optical techniques; secondary electron emission; semiconductor quantum wells; GaAs; GaAs quantum wells; coherence properties; excitons; femtosecond time-evolution; femtosecond upconversion; phase-locked pulses; quantum wells; resonant secondary emission; spontaneously emitted radiation; Coherence; Excitons; Gallium arsenide; Optical interferometry; Optical pulse shaping; Optical scattering; Resonance; Speckle; Statistical analysis; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-576-X

Type

conf

DOI

10.1109/QELS.1999.807453

Filename

807453