Refractive index sensing performances for single -metal and bimetallic Tamm plasmon configurations with an investigation of different structural configurations dependency

Dasgupta, Arnav; Gayen, Rintu Kr.; Maji, Partha Sona

doi:10.1007/s11082-021-03420-x

Cited by 4 publications

(1 citation statement)

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“…This change in resonance wavelength corresponds to sensitivity of approximately 119 nm/RIU, 102-119 nm/RIU, and 332 to 391 nm/RIU, respectively. It is essential to note that the sensitivity can be enhanced through optimization of structural parameters, such as cavity thickness, the number of dielectric bilayers, different plasmonic active materials, and the angle of incidence [24][25][26]. To qualitatively understand the shift in the TP mode resonance wavelength, one can observe the variation in the field distribution of these TP modes, as depicted in Figures 5(a), and 5(b).…”

Section: Incident Lightmentioning

confidence: 99%

Simultaneous Functionality of Tamm Plasmon Mode-Based Refractive Index Sensor Across Multiple Photonic Bandgaps

Sharma,

Srivast,

Maji

et al. 2024

Preprint

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In this work, a refractive index sensor based on Tamm plasmons mode is proposed, capable of concurrent functionality across diverse photonic bandgaps. The proposed sensor structure consists of an analyte cavity sandwiched between a one-dimensional photonic crystal of SiO2/TiO2 and a thin metal film. Tamm resonances are observed within different photonic bandgaps. The functioning principle of this optical sensor relies on altering the refractive index of the analyte, resulting in a shift in either the transmission or reflection spectrum. The study reveals that the resonance wavelength demonstrates a linear increase with the rise in the analyte's refractive index. The study reveals that simultaneous utilization of Tamm Plasmon sensors across multiple bandgaps enables multiplexed sensing, where we can detect multiple analytes or parameters in parallel. Tamm resonance-based sensors, notable for their main advantage of prism-free coupling, offer a compelling alternative to other optical sensors like surface plasmon resonance-based sensors.

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Section: Incident Lightmentioning

confidence: 99%