Surface plasmon resonance based sensing of different chemical and biological samples using admittance loci method

Proceedings of the 2014 International Conference on Control, Instrumentation, Energy and Communication (CIEC)

2014

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A theoretical study based on the use of admittance loci method in design of a plasmonic structure using transparent ceramic prism material and some other types of prism materials has been reported in this paper. A Kretschmann-Raether type prism-based plasmonic structure consisting of a prism, gold (Au) metal film and dielectric sample has been investigated with the use of admittance loci method in Attenuated Total Internal Reflection (ATIR) mode. High refractive index of ceramic material along with high detection accuracy offers certain advantages for sensing applications. Admittance loci plots, surface plasmon sensing curves along with surface plasmon resonance angle, angular shift and detection accuracy plots using transparent ceramic prism material has been compared with those for other types of prism materials in order to study their effects on surface plasmon sensing at 670 nm wavelength.

Section: Simulated Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Performance evaluation of admittance loci based design of a ceramic prism based plasmonic structure

Proceedings of the 2014 International Conference on Control, Instrumentation, Energy and Communication (CIEC)

2014

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“…Surface plasmon excitation in the infrared region involves the use of chalcogenide 5 and silicon as coupling prism materials. 19,20 Gupta et al have worked on tuning and sensitivity enhancement of an SPR sensor. A work on modeling of chalcogenide glass based SPR sensor for chemical sensing using near-infrared light has been reported earlier.…”

Section: Introductionmentioning

confidence: 99%

Performance of admittance loci based design of plasmonic sensor at infrared wavelength

2013

Opt. Eng

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A Kretschmann-Raether prism-based three-layer structure consisting of a prism, gold (Au) metal film, and dielectric sample has been investigated with the use of admittance loci method in attenuated total internal reflection mode. High index prism materials like silicon, chalcogenide (2S2G), and SF14 have been used to study their effect on surface plasmon resonance (SPR) sensing (at 1200-nm wavelength) in infrared region by corresponding admittance loci plots and also by SPR sensing curves. The performance of the sensor based on the choice of the prism material has been discussed with the help of sensitivity plots giving due importance to the dynamic range of the designed sensor. Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/16/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 087112-2 August 2013/Vol. 52(8) Brahmachari and Ray: Performance of admittance loci based design of plasmonic sensor. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/16/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 087112-3 August 2013/Vol. 52(8) Brahmachari and Ray: Performance of admittance loci based design of plasmonic sensor. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/16/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 087112-4 August 2013/Vol. 52(8) Brahmachari and Ray: Performance of admittance loci based design of plasmonic sensor. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/16/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 087112-6 August 2013/Vol. 52(8) Brahmachari and Ray: Performance of admittance loci based design of plasmonic sensor. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/16/2015 Terms of Use: http://spiedl.org/terms Kaushik Brahmachari received his BSc (honors) degree in electronics from

“…Admittance loci method has been used in thin film modeling [8] and design of SPR based devices [9][10][11][12]. Prism material dependency as well as sensing application of SPR based on admittance loci analysis has been reported earlier [13,14]. Gupta and Kondoh have worked on tuning and sensitivity enhancement of SPR sensor [15].…”

Section: Introductionmentioning

confidence: 99%

Admittance Loci Based Design of a Plasmonic Structure Using Ag-Au Bimetallic Alloy Film

2013

ISRN Optics

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A theoretical study based on the use of admittance loci method in the design of surface plasmon resonance (SPR) based structure using Ag-Au bimetallic alloy film of different alloy fractions and nanoparticle sizes has been reported along with some interesting performance related simulated results at 633 nm wavelength. The sensitivity and other performance parameter issues of the structure based on the choice of correct alloy fraction and nanoparticle size of Ag-Au bimetallic alloy film have also been discussed giving due importance to the dynamic range of the designed structure.