Enhancement of spontaneous emission in three-dimensional low refractive-index photonic crystals with designed defects Appl. Phys. Lett. 101, 071109 (2012) Optical properties and effect of carrier tunnelling in CdSe colloidal quantum dots: A comparative study with different ligands AIP Advances 2, 032132 (2012) Controlling the photoluminescence of acceptor and donor quantum dots embedded in a nonlinear photonic crystal Appl. Phys. Lett. 101, 051115 (2012) Nanoscale fluorescence imaging with

more »

... um dot near-field electroluminescence Appl. Phys. Lett. 101, 043118 (2012) Theoretical optimization of multi-layer InAs/GaAs quantum dots subject to post-growth thermal annealing for tailoring the photoluminescence emission beyond 1.3μm We investigated an optically created nuclear field in a single InAlAs quantum dot and demonstrated that the nuclear field can be used to discriminate whether photoluminescence lines originate from the same dot or a different dot. Since the nonlinear response of the nuclear field is sensitive to the electron g factor and correlation time of a coupled electron-nuclear spin system, the resultant Overhauser shift is their good measure for individual quantum dots. This method provides a simple and convenient alternative to the standard photon cross-correlation method.