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Updated: Jul 20, 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

High-sensitivity small-angle sensor based on surface plasmon resonance technology and heterodyne interferometry.

Shinn-Fwu Wang¹, Ming-Hung Chiu, Chih-Wen Lai

¹Department of Electronic Engineering, Ching Yun University, Jhongli City, Taoyuan, Taiwan, ROC.

|August 24, 2006

Summary

A novel surface plasmon resonance sensor offers high-sensitivity small-angle measurement. This innovative technique achieves high resolution and rapid measurements, demonstrating its practical feasibility for precise angular detection.

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Area of Science:

Optics and Photonics
Sensor Technology

Background:

Surface plasmon resonance (SPR) is a powerful optical sensing technique.
Heterodyne interferometry offers high precision in phase measurement.
Accurate small-angle measurement is crucial in various scientific and industrial applications.

Purpose of the Study:

To propose a high-sensitivity small-angle sensor.
To leverage surface plasmon resonance (SPR) and heterodyne interferometry.
To introduce a novel design using two right-angle prisms for enhanced performance.

Main Methods:

Development of a new optical setup incorporating two right-angle prisms.
Integration of surface plasmon resonance (SPR) technology.
Application of heterodyne interferometry for precise angle detection.

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

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Main Results:

Achieved theoretical resolution of 1.2x10(-7) radians.
Demonstrated high sensitivity and high resolution for small-angle measurements.
Operates within a measurement range of -0.15 to +0.15 degrees.

Conclusions:

The proposed sensor design offers a novel method for high-sensitivity small-angle sensing.
The technique presents advantages such as a simple optical setup, ease of operation, and rapid measurement.
Feasibility of the high-sensitivity small-angle sensor has been successfully demonstrated.