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Directed self‐assembly of single quantum dots for telecommunication wavelength optical devices
Author(s) -
Dalacu D.,
Reimer M.E.,
Fréderick S.,
Kim D.,
Lapointe J.,
Poole P.J.,
Aers G.C.,
Williams R.L.,
Ross McKin W.,
Korkusinski M.,
Hawrylak P.
Publication year - 2010
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.200810077
Subject(s) - quantum dot , photonics , optoelectronics , photon , quantum dot laser , physics , nanotechnology , materials science , computer science , semiconductor , optics , semiconductor laser theory
The ability to control the nucleation site of a single quantum dot will have a profound effect on the development of quantum dot‐based photonic devices. The deterministic approach will provide a truly scalable technology that can take full advantage of conventional semiconductor processing for device fabrication. In this review, we discuss the progress towards the integration of deterministically nucleated single quantum dots with top‐down quantum optical devices targeting telecommunication wavelengths. Advances in site‐controlled quantum dot nucleation using selective‐area epitaxy now makes it possible to position quantum dots at predetermined positions on a substrate in registry with alignment markers. This, in turn, has allowed for devices fabricated in subsequent processing steps to be aligned to individual quantum dots. The specific devices being targeted are gated‐single dots and coupled dot‐cavity systems which are key components of efficient sources of single photons and entangled photon pairs.