%0 Journal Article
%T Site-Controlled Quantum Emitters in Dilute Nitrides and their Integration in Photonic Crystal Cavities
%A Antonio Polimeni
%A Francesco Biccari
%A Giorgio Pettinari
%A Marco Felici
%A Mario Capizzi
%J Photonics | An Open Access Journal from MDPI
%D 2018
%R https://doi.org/10.3390/photonics5020010
%X Abstract We review an innovative approach for the fabrication of site-controlled quantum emitters (i.e., single-photon emitting quantum dots) based on the spatially selective incorporation and/or removal of hydrogen in dilute nitride semiconductors (e.g., GaAsN). In such systems, the formation of stable N-H complexes removes the effects that nitrogen has on the alloy properties, thus enabling the in-plane engineering of the band bap energy of the system. Both a lithographic approach and/or a near-field optical illumination¡ªcoupled to the ultra-sharp diffusion profile of H in dilute nitrides¡ªallow us to control the hydrogen implantation and/or removal on a nanometer scale. This, eventually, makes it possible to fabricate site-controlled quantum dots that are able to emit single photons on demand. The strategy for a deterministic spatial and spectral coupling of such quantum emitters with photonic crystal cavities is also presented. View Full-Tex
%K site-controlled QD
%K nanophotonics
%K photonic crystals
%K hydrogen in semiconductors
%K dilute nitrides
%K quantum optics
%U https://www.mdpi.com/2304-6732/5/2/10