Technique to Optimize the Optical Properties of Nanomaterials for Photonic Sensors
| Authors | A. Shrivastava1 , Guntaj J2 , Gopal K3, A. Jain4, S.O. Husain5, T. Srinivas6, A. Badhoutiya7, P. William8 |
| Affiliations | 1Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamilnadu, India 2Centre of Research Impact and Outcome, Chitkara University, Rajpura- 140417, Punjab, India 3New Horizon College of Engineering, Bangalore, India 4Lovely Professional University, Phagwara, India 5Department of Computers Techniques Engineering, College of Technical Engineering, The Islamic University, Najaf, Iraq 6Department of CE, GRIET, Hyderabad, Telangana, 50090, India 7Department of Electrical Engineering, GLA University, Mathura, India 8Department of Information Technology, Sanjivani College of Engineering, Kopargaon, MH, India |
| Е-mail | 19@gmail.com |
| Issue | Volume 17, Year 2025, Number 6 |
| Dates | Received 15 August 2025; revised manuscript received December 2025; published online December 2025 |
| Citation | A. Shrivastava, Guntaj J, Gopal K, и др., J. Nano- Electron. Phys. 17 No 6, 06029 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(6).06029 |
| PACS Number(s) | 42.79.Pw, 78.66.Qn |
| Keywords | Surface plasmon resonance (SPR), Gold layer, Otto configuration, Photonic sensors, Thickness (13) , Ion-beam sputtering-deposition. |
| Annotation | Surface Plasmon Resonance (SPR) is a phenomenon in which electrons at the interface of dielectric and metal vibrate coherently in response to incoming plasmons. It is commonly employed in photonic sensors due to its sensitivity to material properties, making it useful in domains such as biosensing and biomedical applications. Various parameters, particularly the thickness of the metal layer, have a considerable impact on SPR performance, necessitating exact modifications to generate the best resonance signal. Existing research has failed to delve into in-depth analysis about how the thickness of gold layers influences SPR properties under controlled conditions. The research aims to explore the influence of different gold layer thicknesses on the SPR signal and to find the optimal thickness for getting the best resonance angle and reflectance characteristics. Thin gold films were created using an experimental process, with the thickness regulated by ion-beam sputtering–deposition. The SPR resonance was measured by altering the gold layer’s depth and recording the resulting reflection spectrum. The resonance angle shifts were investigated utilizing the plasmonic Otto configuration at a given wavelength in an air-based dielectric medium. The research showed that changes in gold layer thickness caused considerable adjustments in the resonance angle. The results show that there is an optimal thickness range for maximum SPR performance, with minimal reflection and optimal resonance. |
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List of References English version of article |
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