Plasmonic Sensors for Biomedical and Infra-Red Detection Application

Objective/Contributions:

The project aims at proposing a new Infra-Red sensor design by employing a plasmonic effect. Plasmonic devices have great potential for biomedical applications due to the sensitivity of the localized surface plasmon resonance to the surrounding medium. Therefore, proposed metasurface sensors are tuned for Biomedical applications as medical diagnostic tools.

• Enhancing photovoltaic using plasmonic nanostructure.
• Designing high sensitivity Infra-Red sensors for biomedical applications: Infra-red spectrum exhibits high interaction with the human body since the black body radiates mostly in the Infra-Red region at room temperature. The diagnosing process is based on the detection of refractive index shifting of samples. An Infected sample has a different refractive index as a result of photonic interaction with molecules. A surface plasmon resonance model is designed to resonate at a specific frequency. Changing the refractive index of the surface shifts its resonance location. Therefore, resonance frequency location can be used to differentiate infected and uninfected samples.

Outcomes:

High Sensitivity and Q Factor: Optimizing sensors achieves a high sensitivity Q factor, resulting in a high Figure of Merit (FoM). These parameters show that the sensors are highly sensitive to changes in the refractive index, making it suitable for applications like cancer detection.
Metaheuristic Optimization Algorithms: The optimization process using Metaheuristic Optimization Algorithms demonstrated a faster and more effective way to fine-tune the sensor’s dimensions, improving sensitivity and overall performance compared to traditional parametric studies.
Out of this project during the two years, the following achievements has obtained by the Research Assistant:

• Prof. Mostafa Ghanem Award for Outstanding Graduate Student for the academic year 2023-2024.
• IEEE MTT-S society pre-graduate scholarship (2024).
• Selected as one of 650 Young Scientist to attend 73rd Lindau Nobel Laureate Meeting (2024).
• Student travel grant to attend the European microwave meeting, 22 – 27 September 2024, Paris, France
• 3rd Place in poster competition, Postgraduate research forum (PGRF), Nile University, Egypt 2024.
• IEEE Antennas and Propagation Society Fellowship 2023 | Link.
• 2nd Place, Antenna design contest, The International Microwave & Antennas Symposium, Cairo, Egypt (2023).