The ultimate limit to the emission linewidth of single nanocrystals - Archive ouverte HAL Access content directly
Journal Articles Nanotechnology Year : 2013

The ultimate limit to the emission linewidth of single nanocrystals

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Mark J. Fernée
  • Function : Author
  • PersonId : 935177
Chiara Sinito
  • Function : Author
  • PersonId : 940350
Yann Louyer
  • Function : Author
  • PersonId : 906398
Philippe Tamarat
  • Function : Author
  • PersonId : 941314
Brahim Lounis
  • Function : Author
  • PersonId : 941315

Abstract

Measurements of the emission linewidth of single nanocrystals are usually limited by spectral diffusion. At cryogenic temperatures, the origin of this instability was revealed to be photo-induced, suggesting that the spectral peak position may be stable in the limit of vanishing optical excitation. Here we test this stability using resonant photoluminescence excitation and find there is persistent spectral broadening, which ultimately limits the emission linewidth in these materials. The spectral broadening is shown to be consistent with spontaneous fluctuations of the local electrostatic field within the disordered environment surrounding the nanocrystal.
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Dates and versions

hal-00877709 , version 1 (06-03-2018)

Licence

Attribution - NonCommercial - CC BY 4.0

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Mark J. Fernée, Chiara Sinito, Yann Louyer, Philippe Tamarat, Brahim Lounis. The ultimate limit to the emission linewidth of single nanocrystals. Nanotechnology, 2013, 24, pp.465703 (1-5). ⟨10.1088/0957-4484/24/46/465703⟩. ⟨hal-00877709⟩
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