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Related Experiment Video

Updated: May 16, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

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Published on: July 21, 2018

The coupling between localized surface plasmons and excitons via Purcell effect.

Feng Wang¹, Dongsheng Li, Deren Yang

¹State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China. mselds@zju.edu.cn.

Nanoscale Research Letters

|December 11, 2012

Summary

This summary is machine-generated.

Localized surface plasmons in silver nanostructures couple with excitons in silicon nitride, enhancing light emission. This study models exciton positions and suggests methods to optimize optoelectrical properties.

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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

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Published on: December 11, 2013

Area of Science:

Plasmonics and Nanophotonics
Materials Science and Engineering
Solid State Physics

Background:

Localized surface plasmons (LSPs) in metal nanostructures can enhance light-matter interactions.
Silicon-rich silicon nitride (SiNx) is a promising material for luminescence applications.
Understanding the coupling between LSPs and excitons is crucial for optoelectronic device development.

Purpose of the Study:

To demonstrate and model the coupling between LSPs in silver nanostructures and excitons in a SiNx matrix.
To estimate the average position of excitons within the SiNx luminescence matrix.
To propose strategies for enhancing the optoelectrical properties of such systems.

Main Methods:

Utilized the Purcell effect to demonstrate LSP-exciton coupling.
Employed a simple model for estimating the Purcell factor.
Calculated the average exciton position within the SiNx films.

Main Results:

Successfully demonstrated coupling between LSPs and SiNx excitons via the Purcell effect.
Estimated the average exciton position to be approximately 40 nm below the SiNx surface.
The model provides a basis for understanding and improving optoelectrical properties.

Conclusions:

The study provides a deep comprehension of LSP-exciton coupling, applicable beyond specific materials.
Optimization of SiNx thickness, nanostructure dimensions, and confined structures can enhance performance.
The findings pave the way for improved luminescence matrices and optoelectronic devices.