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Updated: Jun 22, 2026

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

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

Published on: July 21, 2018

Surface Plasmon Coupled Phosphorescence (SPCP).

Michael J R Previte¹, Kadir Aslan, Yongxia Zhang

¹Institute of Fluorescence, Laboratory for Advanced Medical Plasmonics, Medical Biotechnology Center, University of Maryland Biotechnology Institute, 725 West Lombard St., Baltimore, MD 21201.

Chemical Physics Letters

|June 30, 2009

Summary

This summary is machine-generated.

Researchers observed surface plasmon coupled phosphorescence (SPCP) in platinum octaethylporphyrin (PtOEP) within PVC films. This directional emission offers new possibilities for studying weak phosphorescence signals in biological applications.

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Last Updated: Jun 22, 2026

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

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

Published on: July 21, 2018

Area of Science:

Optoelectronics
Materials Science
Biophysics

Background:

Phosphorescence is a key photophysical process.
Isotropic emission limits sensitivity in biological studies.
Surface plasmon resonance (SPR) can modify light emission.

Purpose of the Study:

To report the first observation of surface plasmon coupled phosphorescence (SPCP).
To investigate SPCP using platinum octaethylporphyrin (PtOEP) immobilized in polyvinyl chloride (PVC) films.
To explore the potential of SPCP for enhanced biological sensing.

Main Methods:

Immobilization of PtOEP in PVC films on 47 nm gold films.
Comparison of SPCP spectra and lifetimes with free-space phosphorescence.
Characterization of directional emission properties.

Main Results:

Successful observation and confirmation of SPCP for PtOEP/PVC/Au system.
Demonstration of directional emission distinct from isotropic phosphorescence.
Quantification of spectral and lifetime changes due to plasmon coupling.

Conclusions:

SPCP is achievable with PtOEP in PVC films on gold substrates.
The directional nature of SPCP enhances signal detection.
SPCP holds promise for sensitive detection in biological applications like protein dynamics and enzyme assays.