Ultrafast hole tunneling in asymmetric double quantum wells

Mark F. Krol, Sergey Y. Ten, Brian P. McGinnis, Michael J. Hayduk, Galina Khitrova, Nasser Peyghambarian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present the results of an experimental study of tunneling in Asymmetric Double Quantum Well (ADQW) structures for which holes were found to tunnel from the narrow well to the wide well on sub-picosecond time-scales. These times are as fast, or faster than electron tunneling times despite the absence of resonances between hole states. Valence band structure calculations for our ADQW structures indicate that ultrafast hole tunneling can be attributed spin-dependent delocalization of the hole wavefunctions with a concomitant singularity (in principle) in the density of final wide well states.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages373-378
Number of pages6
ISBN (Print)0819417440
StatePublished - Jan 1 1995
EventOptoelectronic Integrated Circuit Materials, Physics, and Devices - San Jose, CA, USA
Duration: Feb 6 1995Feb 9 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2397
ISSN (Print)0277-786X

Other

OtherOptoelectronic Integrated Circuit Materials, Physics, and Devices
CitySan Jose, CA, USA
Period2/6/952/9/95

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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