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Article

Performance of Surface Plasmon Resonance Sensors Using Copper/Copper Oxide Films: Influence of Thicknesses and Optical Properties

1
Research Unit on Automatic Mesh Generation and Advanced Methods (GAMMA3), University of Technology of Troyes, 12 rue Marie Curie, CS 42060, CEDEX, F-10004 Troyes, France
2
Georesources Materials Environment and Global Changes Laboratory (GEOGLOB), Faculty of Sciences of Sfax, University of Sfax, Sfax 3018, Tunisia
3
Laboratoire Charles Coulomb, University Montpellier, Bâtiment 2—CC069 Place Eugène Bataillon, 34095 Montpellier, France
4
Institut Charles Gerhardt Montpellier ICGM, University Montpellier, CNRS, Bât 17 CC1700, Place Eugène Bataillon, 34095 Montpellier, France
5
Laboratory of Probability and Statistics, Faculty of Sciences of Sfax, University of Sfax, Sfax 3018, Tunisia
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Photonics 2022, 9(2), 104; https://doi.org/10.3390/photonics9020104
Received: 30 October 2021 / Revised: 20 January 2022 / Accepted: 2 February 2022 / Published: 11 February 2022
Surface plasmon resonance sensors (SPR) using copper for sensitive parts are a competitive alternative to gold and silver. Copper oxide is a semiconductor and has a non-toxic nature. The unavoidable presence of copper oxide may be of interest as it is non-toxic, but it modifies the condition of resonance and the performance of the sensor. Therefore, the characterization of the optical properties of copper and copper oxide thin films is of interest. We propose a method to recover both the thicknesses and optical properties of copper and copper oxide from absorbance curves over the (0.9;3.5) eV range, and we use these results to numerically investigate the surface plasmon resonance of copper/copper oxide thin films. Samples of initial copper thicknesses 10, 30 and 50 nm, after nine successive oxidations, are systematically studied to simulate the signal of a Surface Plasmon Resonance setup. The results obtained from the resolution of the inverse problem of absorbance are used to discuss the performance of a copper-oxide sensor and, therefore, to evaluate the optimal thicknesses. View Full-Text
Keywords: surface plasmon resonance; inverse problem; copper; copper oxide surface plasmon resonance; inverse problem; copper; copper oxide
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MDPI and ACS Style

Barchiesi, D.; Gharbi, T.; Cakir, D.; Anglaret, E.; Fréty, N.; Kessentini, S.; Maâlej, R. Performance of Surface Plasmon Resonance Sensors Using Copper/Copper Oxide Films: Influence of Thicknesses and Optical Properties. Photonics 2022, 9, 104. https://doi.org/10.3390/photonics9020104

AMA Style

Barchiesi D, Gharbi T, Cakir D, Anglaret E, Fréty N, Kessentini S, Maâlej R. Performance of Surface Plasmon Resonance Sensors Using Copper/Copper Oxide Films: Influence of Thicknesses and Optical Properties. Photonics. 2022; 9(2):104. https://doi.org/10.3390/photonics9020104

Chicago/Turabian Style

Barchiesi, Dominique, Tasnim Gharbi, Deniz Cakir, Eric Anglaret, Nicole Fréty, Sameh Kessentini, and Ramzi Maâlej. 2022. "Performance of Surface Plasmon Resonance Sensors Using Copper/Copper Oxide Films: Influence of Thicknesses and Optical Properties" Photonics 9, no. 2: 104. https://doi.org/10.3390/photonics9020104

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