Dynamic carrier distribution in quantum wells modulated by surface acoustic waves

6533b7dafe1ef96bd126f5f0

RESEARCH PRODUCT

Dynamic carrier distribution in quantum wells modulated by surface acoustic waves

Paulo V. Santos F. Alsina Rudolf Hey Alberto García-cristóbal Andrés Cantarero

subject

Surface (mathematics)Physics Yield (engineering)Photoluminescence business.industry Surface acoustic wave Phase (waves)Acoustic wave Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter::Materials Science Modulation Optoelectronics business Quantum well

description

We have investigated the dynamics of photogenerated carriers under surface acoustic wave (SAW) fields in GaAs quantum wells using spatially and time-resolved photoluminescence (PL). The frequency and phase of the PL oscillations under a SAW yield information about the carrier distribution and the band-gap modulation induced by the SAW. We directly prove that the transport properties of the carriers ultimately control their distribution, storage and, subsequent recombination in the modulated potential.

year	journal	country	edition	language
2001-06-28

http://www.scopus.com/inward/record.url?eid=2-s2.0-4243472087&partnerID=MN8TOARS

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