Benyoucef Mohamed, Lee Hong Seok, Gabel Juliane, Kim Tae Whan, Park Hong Lee, Rastelli Armando, Schmidt Oliver G
Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany.
Nano Lett. 2009 Jan;9(1):304-7. doi: 10.1021/nl802948a.
Triggered single-photon emission from a single CdTe quantum dot (QD) grown on Si(001) substrate is demonstrated for the first time. The emission wavelength of QDs can be tuned in a wide spectral range (more than 8 meV) using a focused laser beam. A nearly perfect single-photon emission from the exciton lines is preserved even after energy tuning. The lifetime is also measured before and after laser processing, and no appreciable change is observed.
