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Resonant nano-photoluminescence of single CdSe/ZnSe self-assembled quantum dots

  • L. M. Smith
  • , H. Rho
  • , L. M. Robinson
  • , H. E. Jackson
  • , M. Dobrowolska
  • , J. K. Furdyna
  • University of Cincinnati
  • University of Notre Dame

Research output: Contribution to conferenceConference paperpeer-review

Abstract

Summary form only given. We have used time-integrated photoluminescence (PL) and photoluminescence excitation spectroscopy to study excitons confined to CdSe/ZnSe self assembled quantum dots which are created through resonant excitation. We find that the intensity of individual sharp (≈150 μeV) peaks are dramatically enhanced when the excitation laser is an integral multiple of phonon energies above the emission energy. The samples are grown by molecular beam epitaxy (MBE) with 3 monolayers of CdSe grown on top of a ZnSe buffer layer before being capped by a thin layer of ZnSe. We show PL spectra for sampling areas ranging from 8 μm to 170 nm. We have recently begun time-resolved PL measurements and hope to resolve the differing relaxation processes for resonant and nonresonant excitation.

Original languageEnglish
Title of host publicationTechnical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages86
Number of pages1
ISBN (Electronic)155752663X, 9781557526632
DOIs
StatePublished - 2001
EventQuantum Electronics and Laser Science Conference, QELS 2001 - Baltimore, United States
Duration: 2001.05.62001.05.11

Publication series

NameTechnical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001

Conference

ConferenceQuantum Electronics and Laser Science Conference, QELS 2001
Country/TerritoryUnited States
CityBaltimore
Period01.05.601.05.11

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