Srivastava T.Jha R.2025-02-1720186http://dx.doi.org/10.1109/LPT.2017.2787057https://idr.iitbbs.ac.in/handle/2008/1977We numerically demonstrate and propose sensitivity enhancement of surface plasmon resonance (SPR)-based conventional gaseous sensor using few layers of black phosphorous (BP), as compared with other 2D material such as graphene and molybdenum disulphide (MoS2). Results of our optimized numerical study show that with implementation of bilayer BP over a conventional gaseous sensor, sensitivity enhances by 35%, which is further increased up to 73% by addition of a monolayer MoS2 at an operating wavelength \lambda =633 nm. Therefore, the proposed SPR gaseous sensor could potentially open a new platform for high-performance gaseous sensing in the visible region. � 1989-2012 IEEE.en2-D materialsblack phosphoroussensorSurface plamson resonanceArticle