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Journal Articles physica status solidi (b) Year : 2012

High quality factor photonic resonators for nitride quantum dots

Christelle Brimont
Thierry Bretagnon
  • Function : Author
  • PersonId : 997276
Bernard Gil
  • Function : Author
  • PersonId : 995090
B. Gayral
S. David
Philippe Boucaud

Abstract

We report the realization and the optical study of nitride photonic resonators dedicated to the blue and UV spectral range. Microdisks and photonic crystal (PC) cavities are investigated containing GaN/AlN quantum dots (QDs) embedded in an AlN waveguide. The PC cavities are fabricated through the conformal growth of nitrides on a patterned Si substrate, and present delocalized and confined cavity modes in their microphotoluminescence spectra, that are compared to simulations. A large quality factor of 1800 is reached for a modified L3 cavity. In the case of microdisks, which are fabricated through a classical top-down approach, the series of whispering gallery modes (WGMs) with large quality factors (up to 7300) are observed and analysed.

Dates and versions

hal-01905246 , version 1 (25-10-2018)

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Thierry Guillet, Meletis Mexis, Sylvain Sergent, Delphine Néel, S. Rennesson, et al.. High quality factor photonic resonators for nitride quantum dots. physica status solidi (b), 2012, Physica Status Solidi B, 249 (3), pp.449-454. ⟨10.1002/pssb.201100226⟩. ⟨hal-01905246⟩
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