Strong directional dependence of single-quantum-dot fine structure

Stevenson, R M and Young, R J and See, P and Norman, C E and Shields, A J and Atkinson, P and Ritchie, D A (2005) Strong directional dependence of single-quantum-dot fine structure. Applied Physics Letters, 87 (13): 133120. -. ISSN 0003-6951

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Abstract

By isolating quantum dots in microstructures with cleaved facets, we measure individual-quantum-dot photoluminescence emitted in the in-plane direction, in addition to the widely studied vertical direction. The emission is shown to be polarized in the plane, and the observed fine structure is found to be extremely directionally-dependent. These characteristics are attributed to exciton states with orthogonally aligned dipoles in the plane. The result suggests possibilities for single-quantum-dot devices, including side-emitting single-photon sources. (C) 2005 American Institute of Physics.

Item Type:
Journal Article
Journal or Publication Title:
Applied Physics Letters
Uncontrolled Keywords:
/dk/atira/pure/core/keywords/physics
Subjects:
?? physicsphysics and astronomy (miscellaneous)qc physics ??
ID Code:
54930
Deposited By:
Deposited On:
07 Jun 2012 11:53
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 12:53