Super-resolution fluorescence imaging of carbon nanotubes using a nonlinear excitonic process

DOI 機関リポジトリ Web Site 被引用文献3件 参考文献34件 オープンアクセス

書誌事項

公開日
2019-06-24
資源種別
journal article
DOI
  • 10.1364/oe.27.017463
公開者
Optica Publishing Group

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説明

Highly efficient exciton-exciton annihilation process unique to one-dimensional systems is utilized for super-resolution imaging of air-suspended carbon nanotubes. Through the comparison of fluorescence signals in linear and sublinear regimes at different excitation powers, we extract the efficiency of the annihilation processes using conventional confocal microscopy. Spatial images of the annihilation rate of the excitons have resolution beyond the diffraction limit. We investigate excitation power dependence of the annihilation processes by experiment and Monte Carlo simulation, and the resolution improvement of the annihilation images can be quantitatively explained by the superlinearity of the annihilation process. We have also developed another method in which the cubic dependence of the annihilation rate on exciton density is utilized to achieve further sharpening of single nanotube images.

収録刊行物

  • Optics Express

    Optics Express 27 (13), 17463-17473, 2019-06-24

    Optica Publishing Group

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