Graphene oxide-based optical waveguide for moisture sensing in transformer oil

• Main Authors: Karthikeyan, S., Mezher, Mezher H., Ibrahim, Fatimah, Vigneswaran, Dhasarathan, Amiri, Iraj Sadegh, Zakaria, Rozalina
• Format: Article
• Published: Elsevier 2019
• Subjects: Q Science (General); QC Physics; R Medicine; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/24202/; https://doi.org/10.1016/j.photonics.2019.100727

We report on moisture detection in transformer oil based on an optical waveguide fabricated using graphene oxide (GO). The SU-8 polymer channel waveguide was coated by GO film, using a drop-casting technique. Here, for the polarized light, high absorption of transverse electric (TE) was achieved for...