Quantification of scattering loss of III-nitride photonic crystal cavities in the blue spectral range

Ian Rousseau, Irene Sánchez-Arribas, Kanako Shojiki, Jean François Carlin, Raphaël Butté, Nicolas Grandjean

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6 Citations (Scopus)

Abstract

The mechanisms contributing to experimental quality factors of short wavelength (λ=440-480 nm) III-nitride on silicon one-dimensional photonic crystal cavities were quantified. Fluctuations in fundamental and first-order cavity mode wavelength and quality factor were compared over sets of nominally identical cavities. Unlike at λ=1.5μm, experimental quality factors were not limited by fabrication disorder modeled as smooth, normally distributed hole size and position variations; after ruling out absorption losses, additional scattering losses were found to predominate at short wavelengths. Experimental quality factors were sensitive to conformal deposition of few nanometer thin films on the photonic crystal surface, suggesting that the additional scattering losses were linked to the surface.

Original languageEnglish
Article number125313
JournalPhysical Review B
Volume95
Issue number12
DOIs
Publication statusPublished - 2017 Mar 20

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Rousseau, I., Sánchez-Arribas, I., Shojiki, K., Carlin, J. F., Butté, R., & Grandjean, N. (2017). Quantification of scattering loss of III-nitride photonic crystal cavities in the blue spectral range. Physical Review B, 95(12), [125313]. https://doi.org/10.1103/PhysRevB.95.125313