Porphyrin-embedded graphene oxide coated U-bent fiber optical probe: multiple volatile organic gas sensing protocol on a single photonic platform

Soma Saha; Tapanendu Kundu

doi:10.1117/12.3017232

20 June 2024 Porphyrin-embedded graphene oxide coated U-bent fiber optical probe: multiple volatile organic gas sensing protocol on a single photonic platform

Soma Saha, Tapanendu Kundu

Author Affiliations +

Proceedings Volume 12999, Optical Sensing and Detection VIII; 129990H (2024) https://doi.org/10.1117/12.3017232
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

In this work, we present the development of a porphyrin-embedded graphene oxide-based optical fiber sensor using evanescent wave absorption (EWA) spectroscopy for the detection of multiple environmentally hazardous volatile gases. The changes in absorption spectra in the visible region were procured when exposed to the target gases, and the obtained spectroscopic signatures for various gases were examined using an unsupervised machine-learning method. The analysis provides a protocol for grouping the spectra of similarities and forming classes to identify gas molecules. The porphyrin-embedded graphene oxide-coated U-bent fiber probe showed enhanced selection capability compared to the graphene oxide-coated probe. This low-cost photonics platform has enormous potential for developing on-field gas monitoring devices.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Soma Saha and Tapanendu Kundu "Porphyrin-embedded graphene oxide coated U-bent fiber optical probe: multiple volatile organic gas sensing protocol on a single photonic platform", Proc. SPIE 12999, Optical Sensing and Detection VIII, 129990H (20 June 2024); https://doi.org/10.1117/12.3017232

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