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Related Concept Videos

Photoluminescence: Applications01:14

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Related Experiment Video

Updated: Sep 5, 2025

Analysis of Contact Interfaces for Single GaN Nanowire Devices
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Photonics with Gallium Nitride Nanowires.

Norah Alwadai1, Nigza Saleman2, Zainab Mufarreh Elqahtani1

  • 1Department of Physics, College of Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.

Materials (Basel, Switzerland)
|July 9, 2022
PubMed
Summary

Surface plasmon resonance in Gallium Nitride (GaN) nanowires was studied. Increasing nanowire number and coupling enhances plasmon flux density, enabling tunable plasmonics for novel applications.

Keywords:
GaNcouplingfinal element analysisnanowiresplasmons

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Area of Science:

  • Low-dimensional semiconducting materials
  • Surface plasmon resonance
  • Nanophotonics

Background:

  • Surface plasmon resonance (SPR) in low-dimensional materials offers significant potential for advanced applications.
  • Gallium Nitride (GaN) nanowires are promising for exploring SPR phenomena.

Purpose of the Study:

  • To systematically investigate plasmon propagation at the interface of GaN nanowires.
  • To analyze light-GaN nanowire interactions and uncover material potentials for plasmonics.

Main Methods:

  • Computational analysis of light interaction with GaN nanowires.
  • Simulation of plasmon propagation dynamics along nanowire geometries.

Main Results:

  • Plasmons propagate from the center to the periphery of GaN nanowires, with higher flux density at the center.
  • Plasmons flux density increases with light wavelength and the number of nanowires.
  • Coupled nanowires exhibit a greater increase in plasmon flux density compared to uncoupled ones.

Conclusions:

  • Light-GaN nanowire interaction generates interface plasmons with tunable characteristics.
  • The number and coupling of GaN nanowires can be optimized to control plasmon flux density.
  • Findings suggest potential for tuning plasmonics through engineered assemblies of coupled GaN nanowires.