Journal
APPLIED PHYSICS LETTERS
Volume 89, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2399354
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Ordered GaAs/AlGaAs quantum dots (QDs) are fabricated on patterned GaAs(001) substrates and their optical properties are investigated by microphotoluminescence (PL) spectroscopy. QDs exhibit sharp excitonic lines with typical single QD emission features. Photon-correlation spectroscopy shows single photon emission for the neutral exciton transition. Polarization-dependent PL measurements reveal a sharp exciton line and a fine structure exchange splitting of about 70 mu eV. (c) 2006 American Institute of Physics.
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