Photonic jets writing of quantum dots with intrinsic photoluminescence collection enhancement()

A. Ristori, T. Hamilton, M. Felici, G. Pettinari, M. Gurioli, H. Mohseni, F. Biccari

Research output: Contribution to journalArticlepeer-review

Abstract

Owing to their ability to generate non-classical light states, quantum dots (QDs) are ideal candidates for the large-scale deployment of quantum information technologies. However, semiconductor QDs alone lack the high photon collection efficiency needed by these technologies. In this work we present a laser writing technique for the fabrication of QDs self-aligned with dielectric microspheres, which, in turn, increase the collection efficiency of the system of a factor 7.3 ± 0.7. That technique exploits the use of photonic nanojets, produced by illuminating the microspheres, to selectively break the N-H bond in a GaAs/GaAs1−xNx:H/GaAs quantum well, thus fabricating GaAs1−xNx QDs.

Original languageEnglish (US)
Article number179
JournalNuovo Cimento della Societa Italiana di Fisica C
Volume45
Issue number6
DOIs
StatePublished - Nov 2022

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Physics and Astronomy (miscellaneous)

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