Comparison of different photoresist buffer layers in SPR sensors based on D-shaped POF and gold film

Nunzio Cennamo; Maria Pesavento; Letizia De Maria; Ramona Galatus; Francesco Mattiello; Luigi Zeni

doi:10.1117/12.2265603

23 April 2017 Comparison of different photoresist buffer layers in SPR sensors based on D-shaped POF and gold film

Nunzio Cennamo, Maria Pesavento, Letizia De Maria, Ramona Galatus, Francesco Mattiello, Luigi Zeni

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103234F (2017) https://doi.org/10.1117/12.2265603
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

A comparative analysis of two optical fiber sensing platforms is presented. The sensors are based on surface plasmon resonance (SPR) in a D–shaped plastic optical fiber (POF) with a photoresist buffer layer between the exposed POF core and the thin gold film. We show how the sensor's performances change when the photoresist layer changes. The photoresist layers proposed in this analysis are SU-8 3005 and S1813. The experimental results are congruent with the numerical studies and it is instrumental for chemical and bio-chemical applications. Usually, the photoresist layer is required in order to increase the performance of the SPR-POF sensor.

Citation Download Citation

Nunzio Cennamo, Maria Pesavento, Letizia De Maria, Ramona Galatus, Francesco Mattiello, and Luigi Zeni "Comparison of different photoresist buffer layers in SPR sensors based on D-shaped POF and gold film", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103234F (23 April 2017); https://doi.org/10.1117/12.2265603

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