Calculation of Fluorescence Enhancement of Molecule Close to Conical Nanoantenna

Document Type : Full length research Paper

Authors

Department of Physics, Faculty of Science, Persian Gulf University, Bushehr, Iran

Abstract

Utilizing boundary element method (BEM), we investigate fluorescence rate enhancement by conical nanoantennas. The nanoantennas consist of two gold nanoparticles located along a line on both sides of the molecule. Molecular fluorescence rate can be considerably enhanced by nanoantennas. The fluorescence rate depends on the orientation, distance and position of molecule with respect to nanoantennas, as well as the effect of the incident light angle and the gap distance of the two nanoparticles. In practice, it is not easy to fix a precise position and orientation for a molecule in the vicinity of a nanoantenna. By allowing for the effect of molecule position and orientation on the emission spectra, one can achieve a better agreement between experimental results and theoretical calculations. Moreover, it provides important information to design the experimental configuration.

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References

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History

  • Receive Date: 04 May 2019
  • Revise Date: 08 April 2021
  • Accept Date: 26 April 2021

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