Title :
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
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;
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
DOI :
10.1109/QELS.1999.807453
