Potential of SPR Sensors Based on Multilayer Interfaces With Gold and LHM for Biosensing Applications

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,...

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Bibliographic Details
Published inPhotonic sensors (Berlin) Vol. 7; no. 3; pp. 199 - 205
Main Authors Cherifi, Abdellatif, Bouhafs, Benamar
Format Journal Article
LanguageEnglish
Published Singapore Springer Singapore 01.09.2017
Springer Nature B.V
SpringerOpen
Subjects
Attenuation
Biosensors
Dielectrics
Exchanging
Gold
goos-Hànchen (GH) effect
Lasers
LHM
Measurement Science and Instrumentation
Microwaves
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Plasmonic
Plasmonics
Q factors
Reflectance
Refractivity
Regular
RF and Optical Engineering
Sensors
SPR sensor systems
SPR传感器
sub-wavelength scale
峰值反射率
应用
接口
生物传感
表面等离子体共振
黄金
sub-wavelength scale
SPR sensor systems
Plasmonic
goos-Hànchen (GH) effect
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Summary: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 105 due to the Goos-Hanchen 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.
Bibliography: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 105 due to the Goos-Hanchen 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.
51-1725/TP
Plasmonic; goos-Hhnchen （GH） effect; SPR sensor systems; sub-wavelength scale
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1674-9251
2190-7439
DOI:10.1007/s13320-017-0425-1