Photoluminescence enhancement of the single InAs quantum dots through plasmonic Au island films
Journal Article
·
· Journal of Applied Physics
The approach of optical positioning the single InAs quantum dots (QDs) was used for investigating QD photoluminescence (PL) enhancement based on plasmonic effect of nanometer-sized Au island films. It is found that the maximum increase of QD PL intensity is about thirty-eight fold after 5-nm thick Au island films are evaporated on the QD sample surface. The enhanced localized excitation field and increased QD radiative decay rate are responsible for this PL enhancement. This provides an alternative way of preparing bright single photon sources based on the plasmonic effect.
- OSTI ID:
- 22271148
- Journal Information:
- Journal of Applied Physics, Vol. 115, Issue 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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