Publications by authors named "Rajneesh K Verma"
Recent Advances in Lossy Mode Resonance-Based Fiber Optic Sensors: A Review.
Micromachines (Basel)
November 2022
Article Synopsis
- - The article discusses the rising popularity of fiber optic sensors (FOSs) that use the lossy mode resonance (LMR) technique, highlighting its advantages over the traditional surface plasmon resonance (SPR) method, particularly in terms of sensitivity.
- - Unlike SPR, which relies on thin films of metals, LMR can be supported by a diverse range of materials, including conducting metal oxides and polymers.
- - The review covers the development of LMR-based sensors, explaining how LMR works, the configurations needed to activate lossy modes, and the various materials that can support these modes, while also exploring future possibilities and applications in sensing.
Surface plasmon resonance based fiber optic sensor for the IR region using a conducting metal oxide film.
J Opt Soc Am A Opt Image Sci Vis
April 2010
Theoretical modeling of a surface plasmon resonance (SPR) based fiber optic sensor with a conducting metal oxide [indium tin oxide (ITO)] as the SPR active material is proposed. The theoretical analysis reveals that the proposed sensing probe can be utilized for sensing in the IR region, where most of the gases show their absorption regime. Comparison of sensitivity predicts that an ITO-layer-coated SPR-based fiber optic sensor is about 60% more sensitive than a gold-coated fiber optic sensor.
View Article and Find Full Text PDFA localized surface plasmon resonance based fiber optic sensor for refractive index sensing has been analyzed theoretically. The effects of size of the spherical metal nanoparticle as well as the light sources on the performance of the sensor have been studied rigorously. It is observed that a diffuse light source along with an intensity modulation method gives better performance in terms of sensing range.
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