Comprehensive study of reverse index waveguide based sensor with metamaterial as a guiding layer

Upadhyay, Anurag; Prajapati, Yogendra Kumar; Singh, Vivek; Saini, J. P.

doi:10.1016/j.optcom.2015.03.014

Cited by 23 publications

(8 citation statements)

References 20 publications

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“…We have chosen the following parameters, an operating wavelength 0  = 632. [19,20]. Refractive indices for the prism, Au, dielectric layer, and water buffer (cover) are 1.723, 0.2184 + 3.5113i, 2.198, and 1.332, respectively [22].…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

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Resolution enhancement of optical surface plasmon resonance sensor using metamaterial

Pal¹,

Prajapati

Saini³

et al. 2015

Photonic Sens

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Abstract:In this paper, we present and discuss a path to extend the enhancement of the resolution of an optical surface plasmon resonance (SPR) sensor. Basically, our approach is to combine bi-metamaterial layers to design the SPR sensor. The calculation shows that the proposed SPR sensor structure has a preference over the conventional SPR sensors and bimetallic SPR sensors since it gives a much sharper reflectance dip and can achieve considerable sensitivity improvement when compared to the recently reported investigations. The effects of the metamaterial permittivity, permeability, and thickness on the reflectance curve are studied. It is also seen that metamaterial layers improve the field of the proposed SPR structure, which may provide a novel tool to significantly enhance the sensitivity and resolution of the sensors.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

“…Based on these properties, many new or improved applications of metamaterials have been proposed recently. For example, using metamaterials instead of metal parts in the SPR sensor was proposed to enhance the sensing performance [19], and utilizing metamaterials as high frequency sensors was also considered [20].…”

Section: Introductionmentioning

confidence: 99%

Resolution enhancement of optical surface plasmon resonance sensor using metamaterial

Pal¹,

Prajapati

Saini³

et al. 2015

Photonic Sens

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show abstract

“…Yang et al studied LHM sensors based on a single metamaterials particle with the advantages of an easy fabrication and experimental robustness [20]. Upadhyar et al [21] used LHM instead of metals to investigate SPs in low-wavelength sensors [22], and Zheludev [23] analyzed the future development of LHMs and pointed out that the sensing application represents a growing area.…”

Section: Introductionmentioning

confidence: 99%

Potential of SPR sensors based on multilayer interfaces with gold and LHM for biosensing applications

Cherifi

Bouhafs

2017

Photonic Sens

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Recently, the subject on "plasmonics'' has received significant attention in designing surface plasmon resonance (SPR) sensors. In order to achieve extremely high-sensitivity sensing, multilayered configurations based on a variety of active materials and dielectrics have been exploited. In this work, a novel SPR sensor is proposed and investigated theoretically. The structure, analyzed in attenuated total reflection (ATR), consists of multilayer interfaces between gold and a metamaterial (LHM) separated by an analyte layer as a sensing medium. By interchanging between gold and LHM, under the effect of the refractive index (RI) of analyte set to be in the range of 1.00 to 1.99, the sharp peak reflectivity at the SPR angle takes two opposite behaviors predicted from the transfer matrix method. At the threshold value of 1.568 of the refractive index of analyte and when the LHM is the outer medium, the layered structure exhibits a giant sharp peak located at 43° of intensity up to 10 5 due to the Goos-Hànchen effect. With respect to the refractive index (RI) change and thickness of analyte, the characteristics (intensity, resonance condition, and quality factor) of the SPR mode, which make the proposed device have the potential for biosensing applications, have been analytically modelized.

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“…The concept of super resolution imaging can be achieved by using metamaterial, which shows the amplification of evanescent fields [16]. The better immunosensing result is achieved by using metamaterial in the reverse waveguide sensor [17]. Refractometry detection limit of peak type metal clad waveguide sensor could also be enhanced by using metamaterial as the guiding layer [18].…”

Section: Introductionmentioning

confidence: 99%

Analytical study of planar waveguide sensor with a metamaterial guiding layer

2017

Self Cite

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Sensitivities of three-layer and four-layer planar waveguide sensors having metamaterial as guiding layer are analyzed for p-polarization of incident light and compared with existing results. Proposed sensors show improved cover layer sensitivity for each case of the cover layer refractive index. Also, proposed sensors demonstrate improved adlayer sensitivity for different values of adlayer thickness and adlayer refractive indices. It is observed that metamaterial has increased the evanescent field due to the unconventional nature of it, by which values of cover layer sensitivity as well as adlayer sensitivity are enhanced.

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Comprehensive study of reverse index waveguide based sensor with metamaterial as a guiding layer

Cited by 23 publications

References 20 publications

Resolution enhancement of optical surface plasmon resonance sensor using metamaterial

Resolution enhancement of optical surface plasmon resonance sensor using metamaterial

Potential of SPR sensors based on multilayer interfaces with gold and LHM for biosensing applications

Analytical study of planar waveguide sensor with a metamaterial guiding layer

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