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. © 2013 Society of Photo-Optical Instrumentation Engineers (SPIE) © 2013 SPIE.

K BRAHMACHARI

M RAY

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

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

Optical Engineering

Modeling of a fused silica (SiO2) glass prism-based plasmonic structure comprising of indium oxide (In2O3)-zirconium dioxide (ZrO2)-silver (Ag)-zinc oxide (ZnO) intermediate layers showing enhancement in sensitivity and figure-of-merit (FOM) in visible and infrared regime has been reported in this paper. Performance of the proposed plasmonic structure has been demonstrated in terms of sensitivity, half width (HW), detection accuracy (DA), and FOM parameters in visible (632.8 nm) and infrared (1200 nm) wavelength of light. High sensitivity of fused silica glass material, In2O3, ZnO films along with high DA and high FOM of Ag and inclusion of ZrO2 as an oxidation protective layer in between In2O3 and Ag have been the most exciting and advantageous features of our proposed structure. Simulated sensitivity values of our proposed structure were found to be 73.8 deg/RIU at 632.8 nm wavelength and it was found enhanced to 109.6 deg/RIU at 1200 nm wavelength and simulated FOM values were also found enhanced from 23.3544 RIU-1 at 632.8 nm to 62.6285 RIU-1 at 1200 nm wavelength for change in sensing layer refractive indices from 1.30 RIU to 1.35 RIU. © 2016 Society of Photo-Optical Instrumentation Engineers (SPIE).

Performance enhancement of a plasmonic structure comprising of indium oxide-zirconium dioxide-silver-zinc oxide intermediate layers working in visible and infrared wavelength region

In this work, admittance loci method is used to model and analyze performance of a chalcogenide prism based plasmonic biosensor comprising of gold metal nanoparticle film for detection of wavelength dependent refractive index change of human blood sample under angular interrogation mode. The wavelength dependent performance of the plasmonic biosensor based on the choice of chalcogenide (2S2G) as a coupling prism material has been discussed with the help of performance parameter plots. © 2015 Copyright SPIE.

Proceedings of SPIE - The International Society for Optical Engineering

Modeling and performance analysis of chalcogenide prism based plasmonic biosensor comprising of gold nanoparticle film

A theoretical design of surface plasmon resonance (SPR) structure operating in attenuated total reflection (ATR) mode and comprising of silicon or chalcogenide (2S2G) prism material coated with gold film having different nanoparticle sizes has been reported along with some interesting performance related simulation results at the operating wavelength of 1200 nm in infrared. The admittance loci based technique has been employed for the appropriate choice of the metal layer thickness. The sensitivity and other performance parameters of the structure based on the choice of the high index prism material and correct gold nanoparticle size have also been presented. In comparison to other conventional prism based plasmonic structures, the proposed model provides the extra degree of freedom, i.e., variations of nanoparticle size in addition to the variation in layer thickness and the use of different high index prism materials like silicon, 2S2G materials, etc. Moreover, the width of the SPR curve can be controlled by using different high index prism materials as well as by changing gold nanoparticle size. Higher sensitivity can be achieved with 2S2G while higher detection accuracy is provided by silicon as prism material. © 2015 AIP Publishing LLC.

Fulltext

Journal of Applied Physics

Performance analysis of a plasmonic sensor based on gold nanoparticle film in infrared light using the admittance loci method

A prism coupler type nanobioplasmonic device consisting of a prism, gold (Au) metal film and human skin tissue as a biosample has been investigated with the use of admittance loci method in angular interrogation mode. High index prism materials namely chalcogenide (2S2G) and silicon have been used to study their effect on surface plasmon biosensing. The performance of the nanobioplasmonic device has been discussed and validated by the theoretical analysis based on resonance curves as well as admittance loci plots. © 2014 Published by Elsevier B.V.

Sensors and Actuators, B: Chemical

Admittance loci based design of a nanobioplasmonic sensor and its performance analysis

A Kretschmann type plasmonic structure consisting of a fused silica glass prism, plasmon active metal film and dielectric sample has been investigated with the use of admittance loci method in attenuated total internal reflection mode. Different plasmon active metals have been used to study their effect on surface plasmon resonance (SPR) sensing (at 633 nm wavelength of He-Ne light) by admittance loci plots and also by corresponding SPR sensing curves. The performance of the plasmonic structure based on the choice of plasmon active metal has been discussed with the help of sensitivity and figure of merit plots giving emphasis on the dynamic range of the designed plasmonic structure. Simulations have been carried out in MATLAB 7.1 environment. © Springer Science+Business Media New York 2014.

Sensing and Imaging

Effect of different plasmon active metals on admittance loci based design of a plasmonic sensor

A simulation study about the use of admittance loci method in surface plasmon resonance (SPR) based sensing using chalcogenide and other commonly used glasses have been reported in this paper. A simple Kretschmann-Raether prism-based multilayer structure consisting of a glass prism, gold (Au) metal film layer and water (sensing layer) has also been investigated with the use of admittance loci method in attenuated total internal reflection (ATIR) mode. Commonly used glasses along with chalcogenide glass have been used to study their effect on SPR sensing (at 900 nm wavelength) in near infrared region by corresponding admittance loci plots and also by SPR sensing curves. © 2013 Elsevier GmbH.

Optik

Modelling of chalcogenide glass based plasmonic structure for chemical sensing using near infrared light

A theoretical study on the design of surface plasmon resonance (SPR) based sensor by admittance loci method has been reported in this paper with the main emphasis being given to the effect of the prism material in a conventional Kretschmann structure in attenuated total internal reflection (ATIR) mode. Several sensing media such as water, acetone, methanol etc have been investigated using different types of prism materials to study their effect on SPR sensing and validated by corresponding admittance loci plots as well as respective SPR curves. The performance of the sensor based on choice of the prism material has been discussed with the help of sensitivity plots giving due to the importance of dynamic range of the designed sensor. Simulations have been carried out in MATLAB 7.1 environment. © 2013 Higher Education Press and Springer-Verlag Berlin Heidelberg.

Frontiers of Optoelectronics

Effect of prism material on design of surface plasmon resonance sensor by admittance loci method

The admittance loci method plays an important role in the design of multilayer thin film structures. In this paper, admittance loci method has been explored theoretically for sensing of various chemical and biological samples based on surface plasmon resonance (SPR) phenomenon. A dielectric multilayer structure consisting of a Boro silicate glass (BSG) substrate, calcium fluoride (CaF2) and zirconium dioxide (ZrO2) along with different dielectric layers has been investigated. Moreover, admittance loci as well as SPR curves of metal-dielectric multilayer structure consisting of the BSG substrate, gold metal film and various dielectric samples has been simulated in MATLAB environment. To validate the proposed simulation results, calibration curves have also been provided. © 2012 The Author(s).

Journal	Data powered by TypesetOptical Engineering
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ISSN	0091-3286