Exploration of LSPR-based Refractive Index Sensor Coated with Silver-MgF2 Layer

Basak, Nilanjana; Sultana, Naznin; Mitu, Sumaiya Akhtar; R, Vinod Kumar; Al-Zahrani, Fahad Ahmed; Patel, Shobhit K.; Ahmed, Kawsar

doi:10.1007/s11468-022-01767-9

Cited by 5 publications

(1 citation statement)

References 53 publications

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“…Recently, 2D materials such as graphene [ 17 , 18 , 19 , 20 ] and transition metal dichalcogenides (TMDC) [ 21 , 22 , 23 ] have attracted wide interest due to their unique structural and optical properties. The unique 2D structure and large specific surface area make the sensor based on 2D materials an excellent application prospect in the biochemical sensing area [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Enhancement of 2D Material-Based Surface Plasmon Resonance Sensor with an Al–Ni Bimetallic Structure

et al. 2023

Sensors

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In this paper, a variety of 2D materials on the surface plasmon resonance sensor based on Al–Ni bimetallic layer are compared. Simulation results indicate that lateral position shift, which is calculated according to the real and imaginary parts of the refractive index of material, can be used as an effective parameter to optimize the sensitivity. By using the parameters for optimizing the SPR structures, the results show that the multiple layer models of Al(40 nm)–Ni(22 nm)–black phosphorus (BP)(1 L) and Al(40 nm)–Ni(22 nm)–blue phosphorus (BlueP)/WS2(1 L) exhibit average angular sensitivities of 507.0 °/RIU and 466 °/RIU in the refractive index range of 1.330–1.335, and maximum sensitivity of 542 °/RIU and 489 °/RIU at the refractive index of 1.333, respectively. We expect more applications can be explored based on the highly sensitive SPR sensor in different fields of optical sensing.

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