Ag-Ni bimetallic film on CaF2 prism for high sensitive surface plasmon resonance sensor

We present a surface plasmon resonance (SPR) structure based on Kretschmann configuration incorporating bimetallic layers of noble (Ag) and magnetic materials (Ni) over CaF2 prism. Extensive numerical analysis transfer matrix theory has been performed to characterize the sensor response considering sensitivity, full width at half maxima, minimum reflection. Notably, proposed structure, upon suitably optimizing thickness layer provides consistent enhancement sensitivity other competitive SPR structures. Hence we believe that this could find new platform for medical diagnosis, chemical examination biological detection. Full Text: PDF ReferencesJ. Homola, S.S. Yee, G. Gauglitz, "Surface planar light pipe: theoretical optimization analysis", Sens. Actuators B Chem. 54, 3 (1999). CrossRef X.D. Hoa, A.G. Kirk, M. Tabrizian, "Towards integrated sensitive biosensors: A review recent progress", Bioelectron, 23, 151 (2007). Z. Lin, L. Jiang, Wu, J. Guo, X. Dai, Y. Xiang, D. Fan, "Tuning Sensitivity Enhancement Surface Plasmon Resonance Biosensor With Graphene Covered Au-MoS 2-Au Films", IEEE Photonics 8(6), 4803308 (2016). T. Srivastava, R. Jha, Das, "High-Performance Bimetallic Sensor Based Periodic-Multilayer-Waveguides", Technol. Lett. 23(20), 1448 (2011). P.K. Maharana, "Chalcogenide prism graphene multilayer affinity biosensor high performance", 169, 161 (2012). Verma, B.D. Gupta, "Sensitivity biomolecules using silicon layers", 160, 623 I. Pockrand, plasma oscillations silver surfaces with thin transparent absorbing coatings", Surf. Sci. 72, 577 (1978). A. Sharma, "High-performance chalcogenide aluminum detection in infrared", Opt. 34(6), 749 (2009). E.V. Alieva, V.N. Konopsky, "Biosensor interferometry independent variations liquid’s refraction index", 99, 90 (2004). S.A. Zynio, Samoylov, E. Surovtseva, V. Mirsky, Shirshov, "Bimetallic Layers Increase Affinity Sensors Resonance", 2, 62 (2002). S.Y. H.P. Ho, improvement optical by gold-silver transducing layer", Proceedings Hong Kong Electron Devices Meeting 63 B.H. Ong, Yuan, S. Tjin, Zhang, H. Ng, "Optimised film maximum evanescent field biosensor", 114, 1028 (2006). Tan, Irawan, Fang, "Two-layered metallic film-induced polariton fluorescence emission on-chip waveguide", Lab Chip 7, 506 B. "Sensitivity–stability-optimized sensing double metal A: Pure Appl. 8, 959, Ghorbanpour, "A novel method production highly adherent Au glass substrates used analysis: substitution Cr or Ti intermediate Ag followed an optimal annealing treatment", Nanostruct, 3, 309, (2013). Chen, R.S. Zheng, D.G. Y.H. Lu, P. Wang, Ming, Z.F. Luo, Q. Kan, chips instrument", 50, 387 N.H.T. Tran, B.T. Phan, W.J. Yoon, Khym, Ju, "Dielectric Metal-Based Multilayers Enhanced Quality Factor Plasmonic Waves", Electron. Mater. 46, 3654 (2017). Nesterenko Sekkat, "Resolution Estimation Au, Ag, Cu, Al Single- Double-Layer Ultraviolet, Visible, Infrared Regions", Plasmonics 1585 M.A. Ordal, R.J. Bell, R.W. Alexander, L.L. Long, M.R. Querry, "Optical properties fourteen metals infrared far infrared: Al, Co, Fe, Pb, Mo, Ni, Pd, Pt, Ti, V, W.", 24, 4493 (1985). Ehrenreich, H.R. Philipp, D.J. Olechna, Properties Fermi Nickel", Phys. Rev. 31, 2469 (1963). Shukla, N.K. Sajal, "Theoretical Study Resonance-based Fiber Optic Utilizing Cobalt Nickel Braz. 288 K. Shah, AIP Conf. Proc. 2009, 020040 (2018). [23] AlaguVibisha, Jeeban Kumar Nayak, Maheswari, N. Priyadharsini, Nisha, Jaroszewicz, K.B. Rajesh, hybrid 2D Cu–Ni", Commun. 463, 125337 (2020). P.M. Anbarasan, material covered (Ni)", Quantum 51, 19 (2019). M.H.H. Hasib, J.N. Nur, C. Rizal, K.N. Shushama, "Improved Transition Metal Dichalcogenides-Based Biosensors", Condens.Matter 4, 49, Herminjard, Sirigu, Herzig, Studemann, Crottini, J.P. Pellaux, Gresch, Fischer, Faist, showing enhanced CO2 mid-infrared range", Express 17, 293 Huo, Yang,T. Ning, Liu, C Li, W. Zhanga, Mana, design resolution graphene–WS2 nanostructures Au–Ag film", RSC Adv. 47177 Padhy, "On Field Performance Ultra-Stable Graphene", 25, 2156