Application of plasmonic quasi crystal (PIQC) in surface enhanced Raman spectroscopy (SERS)

Richa Goel; Rishabh Vij; Sibashish Chakraborty; Venu Gopal Achanta; Satish Kumar Dubey

doi:10.1117/12.2665291

31 May 2023 Application of plasmonic quasi crystal (PIQC) in surface enhanced Raman spectroscopy (SERS)

Richa Goel, Rishabh Vij, Sibashish Chakraborty, Venu Gopal Achanta, Satish Kumar Dubey

Proceedings Volume 12572, Optical Sensors 2023; 125720J (2023) https://doi.org/10.1117/12.2665291
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Abstract

In this work, we have demonstrated the application of plasmonic quasi crystal (PlQC) as SERS active substrate. SERS, an offshoot of Raman spectroscopy, is a powerful analytical technique that provides chemical information about molecules or molecular assemblies adsorbed or attached to nanostructured metallic surfaces. We have demonstrated the detection of urea (20μL), up to 10-5 M concentration using PlQC as SERS substrate. Urea, a biomolecule, is irradiated by a laser source (λ=785nm), and Raman spectra are collected using the Raman setup (Renishaw). All Raman peaks of urea were distinctly visible for further analysis. The proposed PlQC can be used as a SERS active substrate for on-site narcoanalysis, forensic study, explosive detection, bio-diagnostics, detection of adulterants in food/water etc.

Conference Presentation

Citation Download Citation

Richa Goel, Rishabh Vij, Sibashish Chakraborty, Venu Gopal Achanta, and Satish Kumar Dubey "Application of plasmonic quasi crystal (PIQC) in surface enhanced Raman spectroscopy (SERS)", Proc. SPIE 12572, Optical Sensors 2023, 125720J (31 May 2023); https://doi.org/10.1117/12.2665291

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