Design of a Surface Plasmon Resonance CO Sensor.

Area of Science:

• Optoelectronics
• Chemical Sensing
• Environmental Monitoring

Background:

• Carbon monoxide (CO) is a highly toxic gas posing significant health risks.
• Accurate and rapid detection of CO across a wide range of concentrations is crucial for safety.
• Existing CO detection methods may lack the sensitivity, speed, or portability required for all applications.

Purpose of the Study:

• To design and develop a compact superficial plasmonic resonance (SPR) sensor for carbon monoxide (CO) detection.
• To achieve immediate response and high sensitivity across various CO concentrations.
• To create a sensor suitable for diverse environmental conditions, including varying altitudes.

Main Methods:

• Design of a miniaturized superficial plasmonic resonance (SPR) sensor.
• Utilizing the shift in SPR spectrum to quantify CO concentration.
• Characterization of sensor performance concerning resolution and sensitivity.

Main Results:

• The SPR sensor demonstrated immediate response to different CO concentrations.
• Achieved high resolution of approximately 10^-5 RIU (Refractive Index Units).
• Exhibited a sensitivity range of 13.51–81.26 RIU^-1.

Conclusions:

• The developed SPR CO sensor is highly sensitive and offers excellent resolution.
• Its compact size, low weight, and operational flexibility make it ideal for aerospace applications.
• This sensor provides a promising solution for real-time, reliable carbon monoxide monitoring.