Publications by authors named "Grigorii Klimko"
Article Synopsis
- Single photon sources using semiconductor quantum dots are key elements in advancing optical quantum computing and cryptography, often utilizing Bragg resonators for emission control.
- The challenge of fabricating complex periodic structures can be addressed by coupling these quantum dots with resonant nanoclusters made of high-index dielectric materials.
- Experiments show that using magnetic Mie-type resonance in GaAs nanopillar oligomers with InAs quantum dots significantly enhances photon emission efficiency—up to 40 times compared to unstructured materials—indicating promising potential for developing nanoscale single-photon sources.
We report on single-photon emitters for the telecommunication O-band (1260-1360 nm), which comprise an InAs/(In)GaAs quantum dot with asymmetric barriers, placed inside a semiconductor tapered nanocolumn acting as a photonic nanoantenna. The implemented design of the barriers provides a shift in the quantum dot radiation wavelength towards the O-band, while the nanoantenna collects the radiation and ensures its effective output. With non-resonant optical pumping, the average count rate of emitted single photons exceeds 10 MHz with the second-order correlation function g(2)(0) = 0.
View Article and Find Full Text PDF