Patterning of confined-state energies in site-controlled semiconductor quantum dots

Shinichi Watanabe, E. Pelucchi, K. Leifer, A. Malko, B. Dwir, E. Kapon

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We demonstrate control of the confined-state energies of semiconductor quantum dots (QDs) grown on prepatterned substrates. The InGaAsAlGaAs QDs self-order at the apex of self-limiting, inverted pyramids whose locations are fixed by lithography. The confinement energy in the dots is systematically varied across the substrate by changing the pattern of the pyramid array in their vicinity. The resulting energy- and site-controlled QDs show systematic and reproducible shifts of their emission wavelengths as well as antibunched photon emissions from confined single excitons. Such QDs should be useful for applications in quantum information processing and quantum communication devices, e.g., multiple-wavelength single-photon emitters.

Original languageEnglish
Article number243105
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number24
DOIs
Publication statusPublished - 2005 Jun 13
Externally publishedYes

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quantum dots
pyramids
quantum communication
energy
photons
wavelengths
emitters
apexes
lithography
communication
excitons
shift

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Patterning of confined-state energies in site-controlled semiconductor quantum dots. / Watanabe, Shinichi; Pelucchi, E.; Leifer, K.; Malko, A.; Dwir, B.; Kapon, E.

In: Applied Physics Letters, Vol. 86, No. 24, 243105, 13.06.2005, p. 1-3.

Research output: Contribution to journalArticle

Watanabe, S, Pelucchi, E, Leifer, K, Malko, A, Dwir, B & Kapon, E 2005, 'Patterning of confined-state energies in site-controlled semiconductor quantum dots', Applied Physics Letters, vol. 86, no. 24, 243105, pp. 1-3. https://doi.org/10.1063/1.1944891
Watanabe, Shinichi ; Pelucchi, E. ; Leifer, K. ; Malko, A. ; Dwir, B. ; Kapon, E. / Patterning of confined-state energies in site-controlled semiconductor quantum dots. In: Applied Physics Letters. 2005 ; Vol. 86, No. 24. pp. 1-3.
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