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

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

研究成果: Article査読

11 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号243105
ページ(範囲)1-3
ページ数3
ジャーナルApplied Physics Letters
86
24
DOI
出版ステータスPublished - 2005 6 13
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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