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Title: Generation of three polarization-correlated photons from a single semiconductor quantum dot

We performed polarization-resolved cross-correlation measurements on a radiative cascade of a charged tri-exciton in a single quantum dot. Photoluminescence spectra showed rich peaks arising from the formation of charged excitonic complexes. The energy structure in the cascade transition of a charged tri-exciton was explained by the exchange interaction. By using one transition pathway of the cascade, whose intermediate states form spin-triplet states, we succeeded in generating three polarization-correlated photons with circular polarization.
Authors:
; ;  [1]
  1. Department of Physics, Tokyo Institute of Technology, Oh-okayama 2-12-1, Tokyo (Japan)
Publication Date:
OSTI Identifier:
22261911
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; EXCHANGE INTERACTIONS; INTERMEDIATE STATE; PHOTOLUMINESCENCE; PHOTONS; POLARIZATION; QUANTUM DOTS; SEMICONDUCTOR MATERIALS; SPECTRA